Erik ten Hag has provided a worrying update on Lisandro Martinez.
Manchester United faced West Ham in the Premier League and celebrated a 3-0 win.
Rasmus Hojlund got his name on the scoresheet, while Alejandro Garnacho scored a double.
Martinez was forced off in the second half of the game with a suspected knee problem.
Following the game, ten Hag revealed that the injury "doesn't look well."
"Very bad for him, very bad for the team," said the United boss.