FC Barcelona could be forced to face Zalgiris Kaunas on Thursday night without two players.
The Catalans announced that Leo Westermann and Victor Claver are questionable for the contest.
Claver has returned from a foot injury that sidelined him for four months, while it is uncertain why Westermann could miss the game.
FC Barcelona is on top of the EuroLeague standings, with a 17-7 record.
