Chelsea boss Jose Mourinho underwent surgery on a long-standing elbow problem on Monday, the west London club have confirmed.
The Portuguese, who oversaw a 3-1 victory over Manchester United on Sunday, is believed to have travelled to Paris for the operation.
“Jose Mourinho today underwent a minor arthroscopic procedure on a long-standing elbow complaint,” read a tweet from the club's official Twitter account.
“He will return to work tomorrow.”
The 50-year-old, thought to have aggravated an old childhood injury, will return to work on Tuesday as the side prepare for their FA Cup fourth-round clash with Stoke City on Sunday.
Mourinho's Chelsea closed the gap on league leaders Arsenal with their Sameul Eto'o-inspired victory over United, and now trail the Gunners by just two points.