Ryan Naderi’s season could be over after Danny Röhl revealed a "serious" injury and he could be without other key players for Sunday's Scottish Premiership trip to Falkirk, live on Your Site.
Wingers Mikey Moore and Andreas Skov Olsen could miss the match with "small issues", while the match also comes too soon for defender Tuur Rommens.
"It looks serious," Röhl revealed when asked about Naderi. "Let's see what it means in the following weeks, but for the next games he will be out.
"This kind of injury you never know, every week it's important, we have to see.
"It's a shame for him, he worked really hard [against Dundee United], a lot of good stuff off the ball, even some running, sometimes you don't recognise his hard work for the group.
"It's football, we said we need everyone in the squad, and this was a good step for Bojan [Miovski] as well, coming in to score, and in the last couple of weeks we have a lot of different players that scored.
"[Rommens] looks much, much better, I think this weekend will be too early, but it looks great that he's back for the split."
Röhl, who took charge at Ibrox in October, believes there is every chance of a final-day decider in the Scottish Premiership title race.
They trail current leaders Hearts by one point with Celtic a further two behind.
"An exciting one," he added when asked about the post-split fixtures.
"We knew before which opponents we have to face, first we have to take Falkirk away, it's a difficult one, then at Motherwell, then we have a big game against Hearts, then Celtic.
"It makes no sense to look too much ahead, it's game by game, like we did in the last couple of weeks, and if we do our job then we have a good chance."
