Graham Potter can't catch a break. Chelsea can't catch a break. The curse of the defender?
With Reece James and Wesley Fofana already ruled out until the World Cup break at least - James may still play some small part in the tournament if his recovery is quick - and now Kalidou Koulibaly is set to miss Chelsea's decisive Champions League match against RB Salzburg.
The Senegalese international wasn't part of the open training session ahead of the match in Austria and is a doubt for the game itself. Chelsea will qualify if they win and could end the night as group winners if AC Milan beat Dinamo Zagreb.
