Thomas Tuchel has no idea if Andreas Christensen will play for Chelsea again after the defender ruled himself out of the FA Cup final for "private" reasons.
Christensen's contract expires at the end of the month and Barcelona are the favourites to sign him on a free transfer.
The Denmark international started in the 3-0 Premier League win at Leeds United, but was not in the squad for a defeat to Liverpool on penalties on the FA Cup final at Wembley last Saturday.
Blues boss Tuchel on Wednesday confirmed the centre-back told him he was unavailable on the morning of the game.
Tuchel is unsure if Christensen will play in the London club's two remaining Premier League games against Leicester City on Thursday and Watford three days later, as they strive to secure third place.
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Asked if Christensen will return, the German said in a press conference: "Not sure yet if he's involved tomorrow and at the weekend.
"Andreas came on the morning of the match and told me he was not ready to play.
"He had his reasons, they stay private and confidential, but it was not the first time as you can see over the last weeks we had some of the same situations why he did not play so regularly.
"We thought that we are in a good progression and good development because he played very strong in the match before the final against Leeds but the conversation took place and we have to respect it and we of course respected it and he has our support.
"It is unlikely for the weekend, it was on very short notice before the cup final and other matches in the weeks before. So no chance I have any prediction for tomorrow and the weekend."
Timo Werner will miss the clash with Leicester due to a thigh injury, while Kai Havertz also has a thigh problem and will be monitored ahead of the game.