Sergio Aguero is set to announce his retirement at just 33 years old owing to heart problems, according to reports.Manchester City’s record goalscorer left for Barcelona at the end of last season, signing up at the Nou Camp on a two-year deal.But the Argentine striker has just featured four times for the Catalans since making the move, while it was confirmed recently that he would be sidelined for the foreseeable future following the advice of medical professionals.Following the speculation, Aguero took to social media where he said: "Given the rumours, I tell them that I am following the indications of the club's doctors, doing tests and treatment and seeing my progress within 90 days.
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