Ben Chilwell is set for a month on the sidelines after suffering a hamstring injury.
The Chelsea star picked up the problem during the Carabao Cup third round victory over Brighton on Wednesday night as he hobbled off the pitch.
After undergoing a scan, Chilwell will miss several weeks, but will be boosted by the news that the injury is not more severe.
Discussing the blow in his press conference on Friday, Mauricio Pochettino said: «I think it is bad news.
»The doctor told me it is not a good thing. It looks bad but we need to assess the injury."
Pressed on when Chilwell could return, he remarked: «It's difficult to know. We need to assess in the next few days. The club will communicate.»
According to the Evening Standard, the England international will be out for the next four weeks.
It means that the left-back will miss the upcoming matches against Fulham and Burnley before having two weeks to recover during the October international break.
And he could then be out for the London derbies against Arsenal and Brentford before the end of October.
It is the third time that Chilwell has injured his hamstring, meaning that a short-term lay-off could be seen as a fairly positive outcome.
The Three Lions star has made seven appearances for Chelsea so far this term, but has only completed the full 90 minutes on two occasions.
The injury to the 26-year-old is just the latest in a long list of injuries plaguing Pochettino's plans at the moment.
Reece James, Armando Broja, Benoit Badiashile, Wesley Fofona, Christopher Nkunku, Romeo Lavia, Trevoh Chalobah and Marcus Bettinelli are also ruled out with injury.
Chelsea are also without Malo Gusto and Nicolas Jackson, both of whom will serve a suspension against Fulham on Monday night.
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