QPR will be without Shaun Wright-Phillips after it was confirmed the winger would miss the rest of the season due to an ankle problem.
Wright-Phillips, who has not played for the club since 9 March, had to undergo surgery after playing with pain in his ankle for some time.
Redknapp otherwise has no new injury concerns and must decide whether to freshen up his side following the loss to Fulham, when the likes of Park Ji-sung, Nedum Onuoha and Junior Hoilett started on the bench.
Striker Callum McManaman is available for Wigan after returning to full fitness.
McManaman aggravated an ankle injury during the 2-1 win over Newcastle three weeks ago, and was withdrawn midway through the second half of last Saturday's 1-0 victory over Norwich, but has now recovered.
Aside from a number of players out injured long-term, midfielder Fraser Fyvie is the only new addition to the casualty list with 'a knock' Martinez claims will keep him out for seven to 10 days.
