Losing Mason Mount for any period is a massive blow. Even if the English midfielder has not hit the consistent heights of last season, his overall influence and energy in Chelsea's play are undeniable.
Being forced off within 30 minutes in the Club World Cup final was a worry, and the revelation that his ankle injury would rule him out for up to three weeks confirmed the worst. There is now a major race for him to make the Carabao Cup final in 11 days.
His absence will allow the rest of Chelsea's attack to impress Thomas Tuchel and potentially keep their place for the cup final.
