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Mark Duncan, Associated Press
Cleveland Browns quarterbacks Johnny Manziel (2) and Connor Shaw (9) drop to pass during organized team activities at the NFL football team's facility in Berea, Ohio Wednesday, May 28, 2014.

BEREA, Ohio — Johnny Manziel is concentrating only on football after a fun-filled weekend in Las Vegas.

The Browns' celebrated rookie quarterback is on the field Wednesday with his teammates for the second day of Cleveland's organized team activities. Manziel returned to work Tuesday following a well-documented jaunt to Vegas, where he hung out with Patriots partying tight end Rob Gronkowski, attended a UFC fight and enjoyed the nightlife.

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Manziel worked with Cleveland's second-team offense during 11-on-11 drills. His first pass, intended for Pro Bowl tight end Jordan Cameron, was nearly intercepted.

Manziel's decision to head to Vegas raised some questions about his commitment to being a pro. But while there was criticism, there was also the opinion that it was just Johnny Football having fun.

The 21-year-old is expected to meet with the media following the workout.

Online: AP NFL website: www.pro32.ap.org and www.twitter.com/AP_NFL