MK Dons Under-18s suffered defeat on Tuesday afternoon as their Peterborough United counterparts ran out 2-1 winners.
The Young Dons were ahead at the break after Max Crane’s well-taken strike from the edge of the box found the back of the net.
The visitors, however, netted two second-half goals to pick up three points as they extend their lead at the top of the Youth Alliance League.
Next up for Lee Collier’s side is a home clash with Stevenage.
Dons XI: Carter, Riley, Ogundega, Anderson, Waller, Deall, Bailey, Crane, Rowley, Ilunga, R. Holmes.