Defender Ben Tilney has joined Brackley Town on a season-long loan deal.
The move will see the 20-year-old spend a second temporary spell with the National League North side after a stint at St James Park during the 2015/16 season.
Robbie Neilson told mkdons.com: “Ben and I had an honest discussion about where he sees his professional future and we agreed that this was the right move for both parties at this time.
Tilney has made 11 first-team appearances for the Dons and scored in the win over Newport County almost a year ago.