Tony Adamsâ€™ first league game in charge of Wycombe turned into a disaster as they lost 2-1 to a last minute goal against Brentford at Adams Park.
The game got off to a lively start with the home team winning three consecutive corners.
An Andy Thomson header flew wide of the far post from a Darren Currie corner on five minutes.
Brentford thought that they had taken the lead on 11 minutes when Eddie Hutchinson headed past Frank Talia in the Wycombe goal, but he was given offside and the goal was disallowed.
After some even play with half chances for both teams, the visitors took the lead following a corner on their left. Striker Ben May saw his downward header scrambled away and, from the resulting corner, Hutchinson flicked a header in at the far post on 29 minutes.
Wycombe pressed to get on level terms but the Bees defence held firm to go in at half time 1-0 ahead.
At the restart both teams made substitutions - Andy Frampton coming on for Michael Dobson for the visitors and Steve Brown for Keith Ryan for the home side.
Dannie Bulman brought a superb save from keeper Paul Smith on 61 minutes as the ball sped toward the far corner. However, Wycombeâ€™s pressure paid off on 65 minutes when Brown fed Jermaine McSporran, who beat Smith with a devastating swerve shot.
Michael Simpson should have put the home side in front on 68 minutes when Currie set him up, but he skimmed the chance wide from four yards.
Despite the pressure on the Brentford defence, Wycombe were not able to find a way through for the all-important winner.
Instead it was Brentford who snatched it in injury time when Jay Tabb headed home a flick on from Ibrahima Sonko to give the Bees all three points.