There, he won two Champions Leagues, four LaLiga titles, two Supercopa de Espana and one Copa del Rey.
After losing out in Pep Guardiola's Blaugrana revolution, the Cameroonian joined Inter Milan for the 2010/11 season - and duly became the first player ever to win back-to-back continental trebles.
The News Agency of Nigeria (NAN) reports that after a trophy-laden 22-year playing career, Eto'o has chose to hang up his boots.
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Eto'o also represented Cameroon at four World Cups, ending up with 56 goals in 118 appearances for his country.
In a short Instagram message on Friday night, the Cameroon legend announced that he has chose to call time on his career after leaving Qatar SC earlier this year.
He wrote: "The End". Towards a new challenge.
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Eto'o joined Real Madrid as a youth player in 1997 and went on to spend the next three years with Los Blancos but couldn't cement his position in the first team. "Thank you all, big love", he penned.
From then his career really took off and started to blossom.
He scored 130 goals in 199 matches across five seasons, winning three Champions League trophies and scoring in two of the finals.
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Il a aussi travaillé avec Agnès Jaoui et Jean-Pierre Bacri ( Cuisine et dépendances ) ou encore Laurent Baffie ( Toc toc ). Le 6 septembre, Richard Berry a annoncé une triste nouvelle sur Instagram .