Fati sustained the injury during the team's La Liga match against Real Betis here on Saturday. The player played for 45 minutes in the match and was then substituted.
Nine-man Paris Saint-Germain (PSG) lost to RB Leipzig in a repeat of last season's semi-final and Chelsea proved too strong for Rennes, with Timo Werner twice converting from the penalty spot
"We are angry, and angry because we wanted the three points. We are failing a lot in front of the goal, I am the first. We have had many chances, but we have only scored one," Goal.com quoted Griezmann as saying.
"I'm worried by our performance in attack. It's not an attitude problem, nor concentration, but it's a question of being more assured in front of goal," Goal.com quoted Koeman as saying.
Rashford's late goal earned United a 2-1 victory away to Paris Saint-Germain last week and at Old Trafford the England striker came on as a second-half substitute and scored three times
Rashford, who scored the winning spot-kick when United knocked PSG out in 2019, drilled home a low shot three minutes from the end which won a thrilling Group H contest at a near-empty Parc des Princes.
Barcelona had its first defeat under Ronald Koeman when it lost 1-0 at Getafe on Saturday, right after Madrid was beaten 1-0 at home by recently promoted Cádiz
A pressure defense anchored by Fernando and Jules Kounde shut down Lionel Messi for long periods and forced Barcelona into making an unusual number of bad passes