Reporter: Fofanah left the field with a knee injury in today’s friendly, and the extent of the injury remains to be determined.

According to Chelsea and team reporter Adam Newson, French defender Fofanah was substituted because of a knee injury in today’s friendly against Brentford. At present, the extent of Fofanah’s injury has yet to be determined, but there are objective concerns.
Fofanah, 22, joined Chelsea from Leicester City for 82.5 million euros this summer and has made four appearances for the Blues so far this season, scoring one goal.
(Sky)