Browns wide receiver Mohamed Massaquoi returned to practice for the first time on Sunday. It was his first football-related action since coming to camp with his left foot in a cast and clouded by mystery. "It was a bone chip, but I'm not sure when or where it came from," Massaquoi said. "I didn't know it until I got here." Massaquoi's injury was never disclosed until he came off the field Sunday. He revealed that he got hurt during "Camp Colt," a series of workouts hosted in Texas by Browns quarterback Colt McCoy. That was during the NFL lockout, which delayed the opening of all training camps.