Oxford will be without defenders Jimmy Sangare and Mitchell Hanson for their trip to relegation-threatened Barnet on Easter Monday.
Sangare, making his first home start of the campaign, hobbled out of Saturday`s goalless draw with promoted Chesterfield with a broken metatarsal, which rules him out for the remainder of the campaign.
He was replaced by Hanson who was then duly stretchered off nine minutes after the break following a clash of heads which required six or seven stitches.
But the U`s are boosted in defence by the return of Harry Worley who completed a two-match ban against the Spireites.
Midfielder Simon Heslop will again be assessed having missed out at the weekend with a dead leg sustained against Accrington.
It remains to be seen whether on-loan Ryan Burge will be available having been recalled by Doncaster last week, but only for training according to United boss Chris Wilder.