Atletico Madrid's French defender Clement Lenglet won't be able to play against Lille in the Champions League on Wednesday night and is likely to be out of action for around a month after twisting his left knee and ankle.
The injury happened after he collided with team-mate Axel Witsel in Sunday's 3-1 win at home to Leganes in La Liga.
It was at first feared the defender, who is on loan from FC Barcelona had suffered ligament damage, but the club's tests on Monday morning ruled that out, although the Atletico website confirms he has "a grade 1 twist on the internal ligament in his left knee and a grade 1-2 twist on the left ankle ligament."
Although Atletico don't give a return date, Lenglet is unlikely to reappear ahead of the next international break in November.
Other players unavailable for Wednesday's vital match are defenders Cesar Azpilicueta and Robin le Normand and utility player, Marcos Llorente, while Pablo Barrios is also likely to be sidelined after he suffered what looked like a relapse of a muscle problem that originally sidelined him in September.
Diego Simeone's side need all three points from their game at home to Lille after suffering a 4-0 thrashing to Benfica in their last Champions League match.