The Posh reserve team were beaten 3-0 by AFC Wimbledon in the latest Central League fixture.
The Peterborough United reserve side were made to pay for missed first half chances as AFC Wimbledon recorded a 3-0 victory at the Mick George Training Academy on Tuesday afternoon.
Shaquile Coulthirst cracked the post with a 20-yard effort while Callum Chettle blazed over from the edge of the box as Posh made a bright start.
Coulthirst and Nathan Oduwa both flashed shots across the box while Adil Nabi saw a free-kick pushed around the post.
However, Posh were made to pay for that wastefulness in front of goal when a mistake from Dion-Curtis Henry was punished on by OLUSANYA who finished well into the bottom corner.
Ricardo Almeida Santos was superbly denied by the Dons keeper McDonnell before the visitors made it 2-0 when EGAN drilled into the corner from the edge of the box.
The visitors completed the scoring late on when OAKLEY rounded keeper Henry and squeezed the ball into the near post.
Posh: Henry, Freestone (sub Nicholson 46min), Almeida Santos, Tafazolli, White, Nabi, Coulthirst, Chettle, Oduwa, Moore (sub Stevens 46min), Trialist.