Ghana defender Baba Rahman will work under Guus Hiddink after Chelsea confirmed the Dutchman has re-appointed as manager until the end of the season.
Hiddink will be a spectator when Chelsea host Sunderland in a must-win clash on Saturday.
He is quoted as saying: "I am excited to return to Stamford Bridge. Chelsea is one of the biggest clubs in the world but is not where it should be at the moment. However, I am sure we can all turn this season around.
"I am looking forward to working with the players and staff at this great club and especially renewing my wonderful relationship with the Chelsea fans."