Chelsea boss Roberto Di Matteo insists he has no concerns over John Obi Mikel's state of mind ahead of Saturday's trip to Swansea.
Mikel has found himself at the centre of the controversy surrounding the club in the wake of last weekend's defeat to Manchester United.
Chelsea lodged an official complaint with the Football Association alleging referee Mark Clattenburg used "inappropriate language" towards Mikel and the Metropolitan Police launched an investigation into the alleged comments.
Mikel was a surprise starter in Wednesday's Capital One Cup victory over Manchester United and the Nigerian is likely to start again at the Liberty Stadium.
Di Matteo claims Mikel has not been affected by the off-field issues and that he is focused on playing.
"His frame of mind is good," said Di Matteo. "He's focused on training and playing well. He'll be available for tomorrow [Saturday]. I've spoken to the player and he's fine.
"He's a very strong character and he has a very strong personality. He's shown that in his performances and he's been able to play well under this pressure. From what I can see, he's dealing with these issues in a good manner."