BEREA, Ohio — Along with being sacked, taunted, embarrassed and generally mistreated Sunday by the Cincinnati Bengals, Johnny Manziel got humbled. The Browns rookie quarterback said Monday that his first NFL start, a 30-0 loss that essentially eliminated Cleveland from the playoffs, was the toughest day he's ever had on a football field. "It's the first game I've ever not scored a point in and been shut out," Manziel said.