The Brazilian centre back only signed for the Turkish team last summer but Sambafoot report that he will now make the move back to his homeland.
Gremio are looking to strengthen their squad ahead of their Copa Libertadores campaign.
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The reputation of the Premier League means it is the most popular and one of the most watched leagues in the world.
Five English clubs will compete in the last sixteen of the Champions League for the first time ever as Liverpool, Manchester United, Manchester City, Chelsea and Tottenham face some difficult away matches.