Last Updated: 17/03/12 2:41pm
Rangers can't create another chance and Dundee United hold on for a far closer victory than looked likely when they went 2-0 up in the early stages of the second half. Rangers, led by Davis, pushed and pushed for the equaliser in the last half-hour but had too much to do by then thanks to Watson's screamer and Daly's close-range effort despite Aluko pulling one back.
Into the last of the added minutes now. McGregor to launch the ball forward for one last Rangers chance perhaps.
Glorious chance for Rangers! Davis' knockdown finds Little, whose first touch is sublime and tees up a shot on goal from 12 yards out, but he can't find the finish to match as he sends the ball wide of the upright.
Kerkar's corner is headed clear, but United's attempt to break is cut short by the excellent Davis dispossessing Armstrong.
A minimum of three minutes to add here, and Rangers have won a corner at the start of the first of them.
United break down the right as we move into the final minute, but the move breaks down as Armstrong and Dixon fail to engineer a crossing opportunity.
United looking for a game-clinching third, but Daly can't pick out the run of Flood, and the ball ricochets to McGregor off Robertson.
Another good move from Rangers sees Aluko play in Bedoya on the right, but his cross is well blocked by Dixon at the expense of a corner.
Mackay-Steven breaks down the left with Rangers short at the back, but his low cross finds McCulloch rather than Daly.
Wallace fires a low cross into the United six-yard box after good build-up work, but it's scrambled clear by the home side.
Aluko's made a difference since coming off the bench and gets another shot away from the edge of the box that is well gathered in by Pernis at his near post.
A miscued clearance from Kerkar gives Mackay-Steven a shooting chance 25 yards from goal, but he overcomplicates on the edge of the box and is dispossessed.
Aluko looks to tee up Davison the edge of the box, but Rankin gets there first and hammers the ball clear.
Chance for Rangers! Great first touch from Davis allows him to cross for Little, whose first-time effort is straight at Pernis. That wouldn't have needed to be far either side of the keeper to make it 2-2.
Rangers are pushing hard for the equaliser here, but Kerkar's cross is poor and allows Pernis to make a comfortable grab.
United do now have the chance to clear, the referee awarding the home side a free-kick as the ball comes into a crowded penalty box.
The corner is cleared, but it's a Rangers throw as the visitors keep the pressure on. Ten minutes ago things looked so comfortable for United. No longer.
Good spell of possession and pressure from Rangers ends with Wallace's cross being diverted behind for a corner by Dixon.
The corner is cleared to Sean Dillon, who tries an audacious looping volley that is close enough to the target to have McGregor worried before it lands on the roof of the net.
Great block from McCulloch to deny Russell after he'd been found by Gunning's header back across goal.
Davis does brilliantly to win the ball back for Rangers in midfield and then set Bedoya away on the right. He cuts inside and shoots low at the near post where Pernis' handling is secure with two or three blue shirts in close attention.
A promising position for United comes to nothing as Russell is penalised for a push in the back on McCulloch.
A test for United now, who had been knocking the ball around with great confidence since taking that 2-0 lead early in the second half.
GOAL - ALUKO! Aluko gets the rewards for skill and persistence as he chases a ball down the right and then bursts into the United box and past three challenges before attempting a cross that deflects over Pernis and spins inside the far post. Aluko will claim it, and deserves it for the run. Rangers back in a game that appeared to be drifting away from them.
A rare Rangers foray forward in this second half ends with Davis dragging a shot well wide from 25 yards.
Mackay-Steven starting to enjoy himself here, but after skipping round a couple of Rangers players he's eventually crowded out.
United looking so much more confident going forward now than in those soporific opening exchanges in the first half. Could be a long afternoon now for depleted Rangers.
United carving Rangers open at will now. Mackay-Steven slips in Rankin down the left, but his cross is too high for Daly to generate any power, and his looping header lands on the roof of the net.
First change for Rangers. Mitchell, who gave the ball away in the build-up to United's second goal, makes way for Sone Aluko.
Russell has stayed down after that challenge from Wallace. Looks like he just turned his left ankle as he went to ground. He's back to his feet, albeit gingerly, and hobbles to the sidelines for further treatment.
Russell is played through but denied by a good tackle from Wallace. The ball breaks to Daly, who looks to chip McGregor but doe't get enough on it and allows the keeper to make a relatively routine save.
McCabe helps the ball into the United area, but the ball bounces into the hands of Pernis off Bedoya's head.
GOAL - DALY! Another fine goal for Dundee United as Mackay-Steven skips past McCabe and then whips in a delightful low cross that eludes McGregor and gives Daly the easiest of finishes from no more than three yards. All about the quality of the delivery there.
Great run from Russell takes him into the Rangers box, but he then drags his cross-shot wide of the target but well in front of the tangerine shirts looking to get up in support.
Hardly any added time before the half-time whistle blows, with Watson's moment of magic separating the sides in a game of few chances.
Gunning attacks the free-kick, and the ref blows up for a free-kick after deciding the United man was climbing on the back of the Rangers defender. Gunning then picks up a caution, presumably for something he said.
Flood goes down in the Rangers box. There are shouts for a penalty - mainly from the fans it must be said - but a corner is all United get.
Dixon takes on Mitchell and manages to get his cross in. It's cleared back to him, but all he can do is divert the ball behind for a goal-kick.
The corner is cleared and the return ball back into the box is easy for Pernis. Decent response from Rangers, though, to the shock of falling behind in a game they've largely controlled.
Rangers looking for an instant response as first Kerkar and then Davis try to find a shooting position in the United box. Eventually the ball is played to Mitchell, whose slightly scuffed shot ricochets behind off a United player.
McGregor actually got a fingertip to that Watson thunderbolt, but such was the sweetness of the strike he had no chance of keeping it out.
GOAL - WATSON! Stunning opening goal for Watson. The corner is cleared away for a throw, which is hurled into the penalty area and headed only partially clear by McCulloch. Watson runs on to the ball and absolutely laces a volley past McGregor from the edge of the box.
McCabe forced to concede a corner under pressure. Much better fare in this last quarter-hour after a slow start to proceedings.
Kerkar somehow finds a sight of goal as he stumbles through the United defence who twice should've dispossessed him, but then pokes tamely wide with his right foot when he may have been better served using the left.
McCabe fires a long throw down the touchline for Little, but his touch is poor and the ball trickles out of play for a United throw. Little not particularly enjoying his lone-striker role so far today.
Rangers having a good spell here as the ball drops to Mitchell on the edge of the box but his shot is blocked.
Another chance for the visitors as Wallace swings in a cross from the left that the onrushing Bedoya heads just over the bar.
Game coming to life now as Davis slips in Salim Kerkar who perhaps gives up on the ball a little too early and allows Pernis to clear. Didn't look like he fancied that too much, the Rangers man.
Mackay-Steven and Russell link up nicely before looking to find a route through to Jon Daly, but McCulloch intercepts. Bit more like it.
A welcome sign of positive intent from Mackay-Steven ends with United winning a free-kick 30 yards from goal after Lee McCulloch's foul.
Rangers are unbeaten in their last eight SPL visits to Tannadice and have won the last three, but may need to find a bit more than they've shown so far to keep that run going today.
Little getting, well, little joy up front on his own for Rangers here and is easily held off by Gavin Gunning as the ball runs out for a United goal-kick.
Paul Dixon wins a throw-in off Rhys McCabe. Officials didn't seem too convinced, but they've made the right decision in the end.
The possession stats show a 50-50 split. Not always the most useful of stats, but that one's a pretty fair reflection of things today I'd say.
A midfield slip from Davis gives Scott Robertson the chance to break for United, but he seems unsure whether to go alone or play a pass and in the end does neither as a promising position comes to nothing.
It's a scrappy start to the game really, with that one run and strike from Davis the only real bright spot from either side.
United make slow but steady progress down the right through a series of throw-ins before a long throw is hurled into the Rangers box and headed clear by Maurice Edu.
Keith Watson picks up the first booking of the afternoon for a crude tackle from behind on Wallace. Can have few complaints really.
Gary Mackay-Steven has United's first real effort on goal of the afternoon, but drags his shot well wide from 20 yards.
Davis is set away by Andrew Little, and when the United defenders stand off him he decides to have a crack and forces Dusan Pernis to turn the ball behind for a corner. First real sight of goal for either side.
Mitchell does well to keep the ball in on the right and fires in a cross, but it's just too high for Alejandro Bedoya and the ball skims off the top of his head.
Lee Wallace breaks down the left and appeals for a corner as the ball spins out of play, but the referee signals a goal-kick.
Lee Wallace tidies up at left-back for Rangers before rolling the ball back for Allan McGregor to clear.
Dundee United look to pick a path through the Rangers backline, but the visitors hold firm and uff out the threat.
Dundee Utd: Pernis, Watson, Dillon, Gunning, Dixon, Flood, Robertson, Rankin, Mackay-Steven, Russell, Daly. Subs: Banks, Kenneth, Ryan, Swanson, Douglas, Armstrong, Dow
Rangers: McGregor, McCabe, Perry, McCulloch, Wallace, Mitchell, Bedoya, Davis, Edu, Kerkar, Little. Subs: Alexander, Healy, Aluko, Hegarty, Hemmings
Maurice Edu returns from suspension as Northern Ireland Under-21 player Andrew Mitchell makes his Rangers debut at Tannadice. Ally McCoist is missing six defenders including the suspended Carlos Bocanegra and Dorin Goian while midfielder Alejandro Bedoya gets a rare start, in place of Sone Aluko. United have right-back Robbie Neilson suspended, with his place taken by Keith Watson.