Bayern Munich coach Thomas Tuchel said he was "very sad" after watching one of his players limp off in Saturday's 2-0 win at home to FC Koln – just days before the Bavarians' crunch Champions League semi-final second leg against Arsenal.
Bayern were below their best on Saturday, but beat Koln thanks to second-half goals from Raphael Guerreiro and Thomas Muller, the latter in added time.
With the Bundesliga all but lost due to Bayer Leverkusen's huge lead, Tuchel made changes to his side ahead of Wednesday's match against Arsenal, but suffered a blow as one of his talented stars was forced off with an injury.
Kingsley Coman went down with a suspected muscle injury early in the second half and had to be replaced by Jamal Musiala after 50 minutes at the Allianz Arena.
The 27-year-old, who scored the winning goal for Bayern against Tuchel's PSG side in the 2020 Champions League final, looks set to be sidelined for the rest of the season.
Speaking after the game, Tuchel told Sky: "The big downside to the whole game is the injury to Kingsley Coman. It makes me very sad because I know how hard he worked and how important he is for us.
"First Serge Gnabry is out, now he and Leroy Sane are doubts [for Wednesday]."
Arsenal and Bayern drew 2-2 in the first leg at the Emirates Stadium in London on Tuesday and the tie will be resolved as the two teams meet again in Munich on Wednesday night.
With the Bundesliga out of reach and Bayern out of the German Cup, the Champions League is the Bavarians' only remaining chance for silverware in 2023/24.
More Bayern Munich stories
Bastian Schweinsteiger exclusive: "Losing the Champions League to Chelsea hurt so much – it drove Bayern Munich to the treble"
Bayern Munich slammed by one of own players as Harry Kane misfires and Thomas Tuchel concedes title ahead of Arsenal tie
Former Chelsea manager in line to replace Thomas Tuchel at Bayern Munich: report
