Chelsea manager Thomas Tuchel says there is a "very high probability" captain Cesar Azpilicueta will stay at the club - but admits their "hands are tied" over Antonio Rudiger's future.
However, Azpilicueta has triggered a one-year extension in his contract.
"It's a good thing," said Tuchel. "It's good news for us."
Spain defender Azpilicueta was out of contract at the end of the season and Barcelona were hopeful of signing the 32-year-old.
However, due to the number of appearances he has made for Chelsea this season, the pre-existing clause in his contract has been triggered.