Christian Pulisic suffered another hamstring injury during Chelsea’s 5-2 defeat by West Brom on Saturday.
Pulisic scored Chelsea’s opening goal but had to be replaced at half-time by Mason Mount, and the club have now revealed the extent of the problem.
“Christian did a sprint when he came back out for the second half and said that he felt his hamstring would not survive the game if he continued. So we had to make the decision to substitute him straight away,” Chelsea head coach Thomas Tuchel said.
FREE TO WATCH: Highlights from West Brom’s win at Chelsea in the Premier League
News of another blow for Pulisic hampers preparations for Chelsea’s Champions League quarter-final first leg against Porto on Wednesday.
Pulisic’s injury will be monitored by the club, but the American is a doubt for that European tie.
It is another setback for the player who has already missed time this season due to injury. Pulisic also suffered a tendon problem last season.
He was then taken off in the FA Cup final defeat by Arsenal last August with a hamstring injury.
Tuchel: West Brom defeat a ‘wake-up call’