Chelsea assistant coach Roberto Di Matteo has admitted that he is unsure whether Gary Cahill will complete his move to the club.
The Bolton Wanderers defender is currently agreeing personal terms with the Blues after a fee was agreed between the two parties.
"I don't know, I am not in the loop [with the deal]," Di Matteo told reporters.
"Talks are still ongoing but I don't know when it is going to happen."
Chelsea host Sunderland in the Premier League on Saturday.