Goal reports that Fabregas will move to Monaco without a fee for now, as Chelsea will be paid via bonuses depending on Fabregas’s performances.
The 31-year-old signed a three-and-a-half-year-deal with the principality club, with it hoped he will play a key role in helping the 2017 Ligue 1 champions avoid relegation.
Fab, will reunite with former Arsenal team-mate and close friend, Thierry Henry this time as his manager, with the Gunners’ all-time top goalscorer taking his first steps in management after Leonardo Jardim was sacked in October.
“It is a great pleasure to join AS Monaco, a new project for me,” Fabregas said in a statement.
“The group is quality with young players and a young coach. I’m here to help the team.
“I’m looking forward to starting, we have a great match to play in Marseille on Sunday. I am very excited.”
Fabregas’ departure from Chelsea sees him end four-and-a-half years at Stamford Bridge after he joined the Blues from Barcelona in 2014, with the Spain international helping the west London outfit win two Premier League titles, the FA Cup and the League Cup.
“There is no doubt Fabregas’s place in the Chelsea history books is assured given his achievements over the past four-and-a-half seasons,” a club statement read.
“Big goals and outstanding moments of quality, all backed up by the ultimate aim, which is to be part of a successful, trophy-winning team.
“Fabregas departs having helped the club achieve great success, as well as providing our supporters with some wonderful memories.”
In total he scored 22 goals and laid on 57 assists during his 198 appearances for Chelsea, the last of which came on Saturday when he bid an emotional farewell to the club’s fans in the final stages of his side’s 2-0 win over Nottingham Forest in the FA Cup