Chelsea coach Jose Mourinho has revealed that new signing Baba Rahman can offer plenty to the team.

The 21-year-old Ghanaian signed from Augsburg a week ago and arrived at Cobham for the first time Tuesday, August 18.

Mourinho in his pre-match press conference ahead of the game with West Brom said Rahman’s strengths would be key to Chelsea’s title defence.

"He's our pure left-back, because (Cesar) Azpilicueta is an adaptation," explained Mourinho.

"He's left-footed, a left-back, the offensive one, the one that has a cross, has a pass, and likes to go forward. I would say he's a younger Filipe Luis.

"Filipe Luis is a good player, that’s why he plays for Atletico (Madrid) and for the Brazil national team. Baba is a young Filipe – Filipe is 30, Baba is 21."