Wycombe inflicted a third straight defeat on promotion-chasing Peterborough after winning 5-2 in an action-packed clash at Adams Park.

The hosts deservedly went ahead in the 37th minute when Archie Collins turned Kane Vincent-Young’s effort past Nicholas Bilokapic and into his own net.

Wycombe captain Jack Grimmer doubled the Chairboys’ lead in the 11th minute of stoppage time at the end of the first half with a low finish from Richard Kone’s cross.

Kieran Sadlier added a third, his fifth career goal against his former club, shortly before the hour mark with a composed finish after intercepting Bilokapic’s attempted clearance.

David Ajiboye pulled a goal back for the visitors and Posh set up a grandstand finale when Ryan Tafazolli’s own goal cut the deficit to one.

But Wycombe soon restored their two-goal advantage as substitute Sam Vokes headed home Garath McCleary’s corner in the 73rd minute.

Fellow substitute David Wheeler was gifted the ball in stoppage time after another howler from Bilokapic and he duly added a fifth to compound the visitors’ misery.