Johnny Manziel was reportedly in Las Vegas the night before the Cleveland Browns' final season game.

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According to a report prior to Sunday's game against the Pittsburg Steelers, Manziel was seen having dinner and gambling on Saturday night at the Planet Hollywood casino.

"Manziel, who Browns coach Mike Pettine said still must address off-field problems that resulted in a stint in rehab last year, paid cash for a meal at a restaurant in the casino, according to Tina Samira, a waitress who served Manziel and his guests at Heart Bar at Planet Hollywood," reported USA Today.

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In addition to USA Today report, a second claim by ESPN Las Vegas alleged that Manziel, who was reportedly introducing himself as "Billy," was seen at a nightclub later that night, wearing a blond wig, a mustache and glasses.

On the same day as the report, Manziel was absent during a scheduled treatment at the Browns' facility in Berea.

"It is my understanding that he was not there this morning,'' Jimmy Haslam, owner of the Browns' organization, said during a press conference. "When you are in the concussion protocol, you don't come to the stadium; you just go to Berea."

As for Manziel's whereabouts, Haslam admitted he didn't know where he was.

"When you go through concussion protocol you don't come to the games,'' he explained. "I'm not exactly sure where Johnny is. Haven't talked to him. I know our football people will be on top of that.''

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