The Spanish playmaker left Barcelona for London, before later rejoining the La Liga giants - and is now in his second season at Chelsea.
But the 28-year-old remembers his time at Arsenal fondly, being in no doubt that that's where he grew most as a footballer. Arsene Wenger no doubt aided him hugely, while so did a number of star players.
The Spaniard is quoted as saying by Sky Sports: "At Arsenal, 100%! At 16, you come in from Barcelona playing with players of your age and the next morning your training with [Thierry] Henry, [Patrick] Vieira, [Dennis] Bergkamp.
"Then at 17, you’ve already played 55 games for the Arsenal first team. So from the second I went to Arsenal to the second I left at 24, those eight years is where I grew up most as a player."
Due to his age at the time and the experience he gained at Arsenal, Fabregas's answer makes sense. But it's still a telling tribute to the Gunners, because he grew up at La Masia and also enjoyed huge success when he rejoined Barcelona.
Fabregas has also won his only Premier League title with Chelsea but he certainly would have learned the most at Arsenal.
Focusing on the present, Chelsea face Sunderland in the league next, where Jose Mourinho's side will be under the utmost pressure to get a result. Arsenal, meanwhile, host Manchester City on Monday night.