HARRY Smith was rested from the starting XI before coming on in the 58th minute as Swindon Town defeated Wycombe Wanderers 1-0 in the EFL Trophy on Tuesday night.
The Robins were struggling to break down the visitors before Smith's introduction but Matt Preston score a late winner for David Flitcroft's side.
Swindon's qualification from the group will hinge on their last game against Bristol Rovers next week.
AFC Wimbledon fell to a first defeat in the competition this season, but still qualified for the second round.
Jimmy Abdou was in midfield for the Dons as they lost 2-1 at home to Luton Town.