Jose AldoUFC featherweight champion Jose Aldo’s UFC 129 medical suspension has forced him out of a planned title defense against Chad Mendes at August’s UFC 133, but he expects to return to action as early as September, Aldo announced Tuesday.

Aldo said the UFC decided against him fighting at UFC 134 on Aug. 27 in Brazil, which already features middleweight champ Anderson Silva vs. Yushin Okami, and instead plans on having him headline a Sept. or Oct. event. Who he’ll face is now another question, as Mendes reportedly plans to remain on the UFC 133 fight card against another top contender.

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Aldo (19-1) defended the UFC title for the first time over Mark Hominick at UFC 129 in April following eight-straight WEC wins, while Mendes (10-0) earned a shot at the 145-pound belt with a February win over Michihiro Omigawa in his Octagon debut.

UFC 133 is now headlined by light heavyweight contenders Rashad Evans vs. Phil Davis, while the UFC’s fall schedule is expected to include UFC 135 on Sept. 24 in Denver, UFC 136 on Oct. 8 in Houston, and UFC 137 on Oct. 15 in Liverpool, England.

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[Updated with Aldo’s comments that he’s not injured and will fight in Sept. or Oct.]