Last Updated: 18/08/12 7:28pm
Defensive mistakes see Villas-Boas condemned to defeat in his first Premier League game in charge of Tottenham. Goals from Ba and a Ben Arfa penalty sandwiched Defoe's equaliser. Pardew was sent to the stands in the second half for pushing a referee's assistant. Stay with us for all the post-match reaction.
Last chance for Tottenham? They win a free-kick wide on the right. Van der Vaart is over the ball. Krul comes out to palm away the delivery and then Kaboul is offside.
Spurs are trying to stretch Newcastle with balls from flank to flank. But when Defoe drops deep, the only option in the box is Kane.
The problem for Tottenham has been bad defending. Walker made a real mess of an attempted header before Ba's goal while Van der Vaart and Lennon were at fault for the penalty.
Defoe holds up his hand in an apology to his team-mates after slicing a cross and sending it out for a goal-kick. Tottenham controlled this game for the majority and will be a little confused as to how they are looking like losing it.
Goalscorer Ba is off for Newcastle and replaced by Obertan. Tottenham send on Premier League debutant Kane in place of Sandro. Villas-Boas is switching to 4-4-2 by the looks of it.
Corner to Newcastle after Friedel tips Gutierrez's speculative long-ranger over the bar. The set-piece comes to nothing.
From the free-kick, Walker has the chance to cross. However, Krul shouts loud and clear to his defenders and confidently claims the ball.
Another foul from Simpson, who, remember, has was booked shortly after the opening quarter-of-an-hour, as he trips Defoe from behind.
Villas-Boas looks furious on the touchline. Replays of Pardew show the Newcastle boss up in the stands and punching the air in celebration.
From the short corner, Van der Vaart and Lennon made a real mess of defending against Ben Arfa. The latter tripped the Newcastle forward for a clear-cut penalty. Ben Arfa took the spot-kick and sent Friedel the wrong way when firing into the bottom right-hand corner.
Sandro is back on his feet after receiving treatment. He had deflected the shot for a corner, which Newcastle take short.
We have a break in play as Sandro receives treatment on his right shoulder after seemingly injuring it while sliding to try and block a Tiote shot
Newcastle never really clear the corner and eventually the ball finds Defoe at the back post. His header is fumbled a bit by Krul in the process of making the save and, typically, Defoe is first to react to poke the rebound in at the back post from point-blank range.
Defoe wins a corner. He has worked hard in the lone striking role. Tottenham really do need another recognised forward before the transfer window closes.
Apart from Assou-Ekotto's shot and that recent effort from Defoe, Tottenham have struggled to come up with much of the ball in the areas to threaten Newcastle.
Clever from Steven Taylor. After Krul saved a Defoe shot, Newcastle centre-back takes a touch with his feet and then crouches down to head the ball to avoid a back-pass and allow Krul to pick up the ball.
Anita gets a warm round of applause as he comes on and then immediately does well to hold off a challenge from Livermore before passing the ball wide.
Excellent defending from Simpson has he takes the ball off the toes of Lennon to give away a corner just as the winger was preparing to shoot.
Rather shamelessly Ben Arfa attempts to win a free-kick in the centre circle by throwing himself into a group of Tottenham players. Referee Atkinson is not interested.
Ben Arfa demonstrates there is also a defensive side to his game. He has not had much influence in attack but tracks back on Assou-Ekotto and tackles.
Cabaye launches another of his long passes down field. Tottenham have to concede a throw-in which buys Newcastle at least 40 yards.
Excellent tackle from Tiote on Bale. He has shaken off that earlier injury and is doing his usual job of breaking up play in the midfield.
There is still confusion surrounding Pardew. It looks like he is going to use runners to send messages to the dugout.
Conceding the goal has really upset Tottenham's rhythm. Passes are now going astray which were previously well placed and timed.
There's a flap going on in the directors box at St James' Park as the radio which Pardew too to communicate with the bench is not working.
Tottenham build some pressure in the Newcastle half. It results in Assou-Ekotto sending a swerving effort at goal which is well palmed away by Krul.
Newcastle are now making all the running in the game and Tottenham are having to chase the ball. Spurs, though, remain a threat on the break.
Pardew has been sent to the stands by referee Atkinson. The Newcastle manager pushed one of the referee's assistants after he failed to award a throw-in. Something out of nothing but it was against the rules.
From the right corner of Newcastle's box, Sigurdsson attempts a curling effort. But it is well wide of the target.
Having previously been very quiet, St James' Park is now in full voice and understandably so after that superb goal from Ba.
Free-kick to Tottenham in the Newcastle half after Cabaye gives away another foul. The Newcastle midfielder has already been booked.
It is a brilliant strike from Ba. Walker makes a real hash of trying to head clear Simpson's cross. Ba therefore has time to bring the ball down and curl a wonderful effort past the outstretched Friedel.
Again, there is a huge space between Cisse and Ba and the rest of the Newcastle team. The two strikers have had next to no service.
Problems for Perch as Bale speeds past the defender. Fortunately for Newcastle, the flying Welshman overruns the ball and cannot get in a meaningful cross.
Tottenham, though, still look comfortable. They are not being pulled out of their shape. Early days but Villas-Boas' tactics have been very good today.
Newcastle have clearly been told by Pardew they need to do a better job of keeping the ball. Rather than going from front to back so quickly, they are trying to pass in midfield.
It is all a bit flat at St James' Park. The crowd today is 52,385 but they are waiting to be truly inspired.
Lennon's pace is frightening. He speeds past three Newcastle defenders before crossing towards Defoe. Perch just manages to intercept the low delivery.
Nice touch from Ba as he controls a ball out of the sky on his right foot before laying it off to Tiote.
Let me have your thoughts on the first half at firstname.lastname@example.org or via Twitter at @SkySportsPeteF.
Tottenham had the better of the first half and hit the woodwork twice through Defoe and Bale. Simpson is perhaps a little fortunate to still be on the pitch for two fouls on the latter. Newcastle have been dropping very deep to seemingly counteract the pace of Bale and Lennon on Tottenham's flanks.
Booking for Cabaye for pulling back Bale. Petulant foul from the Frenchman, who had been beaten for pace.
Corner to Newcastle, who end the half on the front foot. Cabaye swings in his side's first corner of the match but it is headed clear by Walker on the edge of the six-yard box.
Cabaye and Ben Arfa slap palms after the latter's challenge on Assou-Ekotto. The Frenchman appear friends in the wake of Euro 2012.
Every player apart from Ba and Friedel is in the Newcastle half. The home team are dropping very deep. They have looked very cautious of Tottenham's pace on the counter-attack.
At a throw-in, Assou-Ekotto stands with his hands outstretched in the footballing sign language for 'who wants it?'. The Tottenham full-back proceeds to throw the ball straight to Cabaye.
Tottenham respond with a speedy counter-attack. Defoe shoots from 20 yards but it flies well over the crossbar of Krul's goal.
Newcastle, though, do have a period of pressure in the Tottenham half. Cisse goes down in the box under a challenge from Kaboul. St James' Park screams for a penalty. But, tellingly, none of Newcastle's players are interested.
Pardew would probably quite like half-time as soon as possible so that he can tweak Newcastle's tactics. His side are having to resort to long balls far too regularly and Tottenham are turning the screw.
Bale hits the crossbar! Another warning for Newcastle. Lennon does excellently to get to the byline and stand up a cross to the back post. With superb technique, Bale heads the ball back across the face of goal and is only denied by the woodwork.
Tiote is not best pleased to have been adjudged to have fouled Sandro close to the halfway line. It was a fairly dramatic tumble from Tottenham's Olympic silver medalist.
That was the best chance and moment of the match by a long way. Newcastle are still struggling to create much attacking threat of their own.
Defoe hits the post! Cutting in from the left and out manoeuvring Steven Taylor, England's midweek hero strikes a low effort from inside the box which rattles the base of Krul's near post. The goalkeeper was beaten.
Newcastle remain on the front foot from the throw-in. But Tiote, who is always backed with shouts of 'shoooot' after his spectacular effort against Arsenal a couple of seasons ago, smashes an effort well over the bar.
Sigurdsson has been at the heart of most of Tottenham's attacking play. He is taking all of the set-pieces and is being tasked with creating from midfield. But this time he shuns a pass to Defoe and tries an ambitious shot which drifts well wide.
Again, Cisse ignores the overlapping run of Santon and instead tries to play the ball in field. He only succeeds in passing it straight to the feet of Sigurdsson.
This very much has the feeling of a first-game of the season. Both Newcastle and Tottenham look a little rusty and the ball is being given away in midfield on a regular basis.
Simpson is fouled when attempting to defend the corner and Krul is able to take the long free-kick and hit it long up the field.
Sigurdsson takes the resulting free-kick and shoots from 30 yards. Krul tips the dipping effort around the base of his right-hand post for a corner.
Simpson is very fortunate. He again trips Bale. That should have been a second yellow card and a sending off. If Simpson had not already been booked, it is fair to predict he would have had a caution for that challenge.
Ba is back close to his own corner flag and goes shoulder-to-shoulder with Walker to win Newcastle a throw-in. Both players end up running into the crowd due to their momentum. That was a good battle of strength.
Villas-Boas is on the edge of his technical area, stroking his trademark auburn stubble as he watches the game.
I spoke too soon. Cisse tries his luck from 25 yards and his shot deflects off strike partner Ba to leave Friedel stranded. The Tottenham goalkeeper can only watch as the ball trickles just wide of a post.
Cabaye and Tiote are really struggling against the extra man of Tottenham's central midfield. They cannot get their passing game going. But Ben Arfa is beginning to wander and drop deep to try and influence the match in the midfield.
Sandro follows Livermore into the book for also tripping Ben Arfa with a tackle around the Newcastle man's knee.
Anita is back in his training gear and is now jogging on the touchline. It looks like Newcastle have decided against the substitution.
Livermore's second foul of the game earns him a booking after a lunging challenge on Ben Arfa in the centre circle.
Pardew will be thinking of ways to get his strikers into the game. Ba and Cisse have hardly had a touch as Cabaye again looks for a long ball which has too much power.
Newcastle were getting ready to send on new-boy Anita in place of Tiote. But Tiote has gestured to the bench that he is alright to continue for a little longer.
Simpson clatters into Bale and is rightly booked. He now has 76 minutes to face the Welshman without picking up another caution.
Excellent stuff from Gutierrez as the Argentine shows trademark commitment to the cause to track back and shepherd the ball out for a goal-kick.
Both sides are struggling to get their game going in central midfield. Tottenham have the extra man due to their formation but are not making it count. Both teams are looking for wide areas in their attacks.
Walker has the pace to beat Steven Taylor on a Tottenham attack. However, Perch is across to cover his central defensive partner.
Newcastle captain for the day Gutierrez is causing problems down the right-hand side of Tottenham. He wins another free-kick. Cabaye again over-hits the delivery and it is a comfortable claim for Friedel.
Sigurdsson is frustrated at sustaining the injury and thumps the turf in annoyance when receiving treatment. But he is back on his feet and seems to be fine to continue.
Chance for Sigurdsson, who slides in on Krul but the shot is blocked. Sigurdsson is also clobbered by the Newcastle goalkeeper. The offside flag was raised, anyway.
Gutierrez wins a free-kick inside the Tottenham box after having his ankles clipped by new England international Livermore. Cabaye's delivery comes to nothing.
There is a good tempo to the opening stages. Krul is a little fortunate when dallying on a back pass and is quickly closed down by Defoe. Krul just gets the ball away in time.
Tiote was struggling with a calf problem in pre-season. He walks a little gingerly off the field for some treatment but is then back on and seems to be okay.
A familiar scene as Tiote crunches into a tackle. His challenge on Walker was fair but he appears to have injured himself.
Newcastle do not thoroughly clear and Tottenham win another corner. Sigurdsson again takes the set-piece and Lennon cannot direct the bouncing ball anywhere close to the target from the back post.
Tottenham win the first corner of the match. Sigurdsson's outswinging delivery from the right is cleared by Ba.
Tiote smacks a long ball forward but it has far too much pace for Ba or Cisse and flies through to Friedel.
Padai Rowan says: "Very Excited by this game. Personally as a Newcastle fan dying to see Vernon Anita come on and make an impact. Huge game for all."
Here come the teams. Respective captains Gutierrez and Gallas lead Newcastle and Tottenham out of the tunnel at St James' Park.
Some late team news. Newcastle have lost substitute Shola Ameobi to a hamstring injury in the warm-up. Summer signing Amalfitano has been named as the replacement.
Paul Cork says: "What's going on with AVB starting Gallas ahead of Vertonghen???? Surely he's not injured, he's on the bench???? Why spend so much on a class defender and not play him????"
A very cheery looking Villas-Boas has just popped up on the television screens. He did not seem to be feeling too much stress in his pre-match interview.
Villas-Boas of course is beginning his new job after previously failing miserably at Chelsea. Will he be a success with Tottenham? Meanwhile, can Newcastle improve on last season's excellent campaign when they only missed out on the top four on the final day of the season?
Matt Levantine says: "When are Tottenham going to sign one or two top-quality strikers? No club aiming for a top-four spot can rely on one striker. Very frustrated now with the club. Also need to sign a new goalkeeper, preferably Lloris but Caesar would be nice."
Gylfi Sigurdsson is handed his first Premier League start for Tottenham as Andre Villas- Boas' men aim to get the new season off to a good start at Newcastle. The summer signing from Swansea goes straight into the Spurs starting line-up but Rafael van der Vaart and fellow new boy Jan Vertonghen are among those who had to settle for a place on the bench. Newcastle captain Coloccini is ruled out with a slight thigh strain but strikers Papiss Cisse and Demba Ba both pass fitness tests for Alan Pardew's Newcastle. Vurnon Anita, the Magpies' new signing from Ajax, is on the bench.
Joseph Ferreira says: "No start for Van der Vaart? Doesn't AVB know about his itchy twitter finger?"
You can get in touch throughout the course of today's match by dropping me a line at email@example.com or via Twitter at @SkySportsPeteF. I will publish a selection of the best comments.
Newcastle say Fabricio Coloccini is ruled out of today's game with a slight thigh injury. Jonas Gutierrez will captain the side instead.
Tottenham team: Friedel, Walker, Gallas, Kaboul, Assou-Ekotto, Livermore, Sandro, Lennon, Sigurdsson, Bale, Defoe. Subs: Cudicini, Naughton, Vertonghen, Jenas, Townsend, Van der Vaart and Kane
Newcastle team: Krul, Simpson, S Taylor, Perch, Santon, Ben Arfa, Tiote, Cabaye, Gutierrez, Ba, Cisse. Subs: Harper, R Taylor, Williamson, Anita, Gosling, Obertan, Shola Ameobi.