After returning to the Camp Nou, the 110 times-capped former Spanish global won one La Liga title, one Copa del Rey, and one Fifa Club World Cup.
The 2010 World Cup victor has penned a three-year deal with Monaco, who has been struggling in the French top flight this season.More news: Chelsea boss Sarri hits back at Bayern after Hudson-Odoi comments
"It is a great pleasure to join AS Monaco, a new project for me", Fabregas said in a statement.
These are two English Premier League titles, one FA Cup and one League Cup, during a period when the Spaniard made 198 appearances for Chelsea and scored 22 goals. "I'm here to help the team and I'm impatient to start".More news: Fed's Powell again stresses patience as U.S. economy's 'narrative' unfolds
After starting out with Arsenal as a roaming attacking midfielder with a clinical eye for goal and a deft pass, Fabregas moved into a deeper-lying position over the years where his vision of the game and outstanding passing range helped him to remain influential in games with Chelsea. "I am very excited", he added. "It is a quality squad with young players and a young coach", said Fabregas, referring Henry.
Fabregas fell out of favour at Stamford Bridge since the arrival of Italian manager Maurizio Sarri in the summer, and was keen to move on to get more first-team opportunities.
However, they have won just twice in nine league games since Henry's arrival and now languish in the relegation zone, five points from safety before the weekend's matches.More news: How to watch LG's CES 2019 press conference live on Monday morning