Johnny Manziel is back at work after a holiday weekend in Las Vegas. And when you're Johnny Football, what happens in Vegas doesn't necessarily stay in Vegas. The Browns' celebrated rookie quarterback reported for organized team activities Tuesday following a few days in Vegas, where he kicked off his summer by hanging poolside with New England Patriots tight end Rob Gronkowski, attended a UFC fight and was captured on video spraying champagne on patrons in a nightclub. And, according to Manziel, he found time to study his new playbook. More...