Oxford defender Curtis Nelson could feature for the first time since August as the U's host Wimbledon.
The 23-year-old, who was a summer-signing from Plymouth, was sidelined with a foot injury but could find a place on the bench on Sunday.
Arsenal loanee Dan Crowley will look to keep his place in the starting line-up after featuring for Michael Appleton's side in the Checkatrade Trophy in midweek.
Forward Alex MacDonald is available despite his red card during Tuesday's shoot-out defeat to Swindon.
Wimbledon midfielder Jake Reeves is an injury doubt for the game after being forced out of their midweek Checkatrade Trophy win against Plymouth.
Reeves was replaced by Dannie Bulman after 30 minutes, while striker Lyle Taylor and fellow midfielder Dean Parrett also picked up knocks and will be assessed.
Boss Neal Ardley has no other new injury or suspension worries as the Dons bid to extend their unbeaten run to six games in all competitions.
Teenage midfielder Alfie Egan will hope to feature again after making his first-team debut on Tuesday night.
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