Diego Costa has thanked Chelsea for three years at the club, saying he will not forget the club, as he leaves the Premier League.
28-year-old will rejoin Atletico, after a fee reported to be worth €60 million was agreed between the club.
Costa spent three years at Chelsea, winning the league in two of those years and has taken to Instagram to give the club gratitude.
“Some cycles begin while others end,” he wrote.
“My cycle at Chelsea began three years ago – three remarkable years in all aspects – and I will never forget it. Two championship titles, a Community Shield, 120 matches, 59 goals and 24 assists later this cycle has ended.
“Not the way I would have wanted – far from it – but the best way possible.
“The wonderful fans of such equally admirable club and all team-mates, as well as all clinical, administrative and logistics staff will remain forever in my mind and in my heart.
“[I] will bring them with me with the certainty that I will always be by their side as well, and I’m sure they will understand the reason why this cycle of mine has now ended – because I could not lose faith in myself. Thank you Chelsea for everything!”