Manziel says he's going completely sober starting July 1

Johnny Manziel claims he's intent on cleaning up his act, but is giving himself a few more days of partying before that happens.

The former Cleveland Browns quarterback, who's currently vacationing in Cabo San Lucas, Mexico, told TMZ Sports that he's going completely sober starting July 1 as he prepares for an NFL comeback.

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Manziel's comments came in response to a photo that surfaced Wednesday of a woman supposedly staying at the same Cabo mansion holding several bags of what appears to be cocaine or another drug.

(Courtesy: TMZ Sports)

"They're absolutely not mine," Manziel said of the drugs. "I don't even know that girl."