Fabregas left Arsenal for Barca last year.
Speaking in an interview with the Guardian, he said: "Arsenal is in my heart and always will be. I don't know if I'll have the opportunity to go back and play there one day, or maybe after football.
"It's a club that is always going to be there and will always open its doors to me. The club's like a family so, even if it wasn't as a coach, I'm sure they'd give me the chance to play a role.
"Sol (Campbell) is there now. Arsenal help a lot with the formation of coaches. (Dennis) Bergkamp also went there two, three times a week when he was doing his coaching badges. In that sense it's a lovely club and there might be the chance to do something with them."
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