On August 5, 2013, Cabrera was among several implicated players not suspended following the resolution of the Biogenesis investigation. It was reported on August 8 that Cabrera would be out of the lineup until at least September for a left knee injury. Manager John Gibbons told reporters on August 22 that Cabrera would not play for the rest of the season. On September 7, Toronto general manager Alex Anthopoulos told reporters that Cabrera had undergone a successful surgery to remove a benign tumor from his lower spine on August 30, and that a full recovery was expected. Shortened to 88 games in 2013, Cabrera batted .279 with 3 home runs and 30 RBI.