Manager Graham Turner is expected to name an unchanged XI for Shrewsbury's crunch promotion clash.
Having kept faith with the same starting line-up for three matches, the Shrews boss made just one change for last weekend's precious 1-0 victory away to Cheltenham.
Mark Wright came in for Lionel Ainsworth having replaced the winger at half-time during Easter Monday's goalless draw at home to Accrington, and Town's leading scorer duly repaid his manager's faith by bagging the only goal at Whaddon Road.
Wright's impact has made it hard for him to be left out against the U's, with Matt Harrold the only other real option should Turner wish to make changes.
Shrewsbury go in the encounter one point behind Wycombe, who occupy the final automatic promotion place, and needing to better their result at home to Southend to clinch a top-three finish.
Oxford centre-back Jake Wright is a major doubt.
Wright had to come off in the second half of last weekend's 2-1 home win over Lincoln with a hamstring injury and he is struggling to be fit.
Harry Worley, Stevie Kinniburgh and Mitchell Hanson will be battling it out to come in if Wright fails to make it, but U's manager Chris Wilder cannot select French defender Djoumin Sangare (metatarsal).
Right-back Damian Batt recovered from a knock to take his starting place against the Imps but after being replaced in the 62nd minute by Ben Purkiss, he might have to settle for a place among the substitutes.
Steven McLean is also pushing for a starting spot after being dropped against Lincoln but then appearing in the second half and setting up United's winning goal.