Barnsley shocked Watford to win 3-0 at Vicarage Road, a result which which sends Colchester United down.
Watford denied top spot
Barnsley's Wembley villain Kayode Odejayi grabbed a goal in each half to lift the Tykes out of the Coca-Cola Championship relegation zone and condemn Watford to a damaging defeat - whilst also relegating Colchester.
Odejayi managed to miss a wonderful chance against Cardiff in Sunday's FA Cup semi-final defeat after having a whole half to run into and, despite missing another howler, he did manage to steer the Tykes deservedly ahead before the break.
Captain Stephen Foster then headed in a second before Odejayi produced an accomplished finish on the break to triple his league tally for the campaign and dent the Hornets' chances of automatic promotion.
Adrian Boothroyd's men had gone eight games without a win before Saturday's 2-1 victory over Coventry but due to the lack of ruthlessness amongst the Championship's top sides kicked off knowing that a win would see them climb from fifth to top.
However they were awful throughout and failed to force Luke Steele into a solitary meaningful save in the Barnsley net.
Opener
The visitors took the lead in the 35th minute after creating a chance that Odejayi could not miss. A rapid break ended with Diego Leon flicking Jon Macken in on the right-hand side of the area.
The former Manchester City man was onside and drove a ball across Richard Lee to Odejayi, who tapped in from two yards out.
If the Vicarage Road faithful thought that things could not possibly get any worse they were proved wrong when the visitors doubled their lead in the 48th minute.
Leon's right-wing corner travelled all the way to the far post where Foster - who had ran unchallenged from the edge of the area - thumped in a header from four yards.
The Hornets promptly kicked the restart straight into touch to trigger a chorus of boos around the stadium but they did go close in their next attack when Nathan Ellington's header from a Jobi McAnuff corner was hacked off the line by Rob Kozluk.
And the fans' dissent turned into disbelief in the 55th minute when Odejayi notched the third.
A hopeful clearance was chased down by the big forward and after holding off the challenge of Leigh Bromby he managed to lift the ball over Lee from just inside the area.
The win sees Davey's side climb to 18th but Boothroyd's men will have their Premier League credentials sternly tested on Saturday when they travel to face current leaders West Brom.
