"When I was small, my coach said, 'Who is this peanut-head dude running around so aggressive?'" Onwuasor recalled with a laugh. "That's one thing my coaches like about me. I'm physical and I compete."
Onwuasor's late shove of rookie running back Kenneth Dixon on the first day of practice Thursday led to a minor knee injury for Dixon. The next day, Onwuasor got locked up with Buck Allen, causing the running back to swing wildly at him. But Onwuasor said that he is not trying to hurt anyone.
"Being a free agent, you've got to find a way to find your role as part of the team, and that's probably going to be my role, being one of the aggressive, blue-collar players that Coach Harbaugh likes," Onwuasor said. "When we get back in the locker room we're like brothers and family."
Former Ravens coach Brian Billick, who attended practice Sunday in part of his duties with the NFL Network, said that the line between making an impression and getting a reputation as a head-hunter can be difficult to navigate.
"You worry about that a little bit, particularly with the limited practices," Billick said. "Somebody saying, 'I'm going to make my mark.' Well, let's not make your mark taking out one of my top guys. You've got to orchestrate that a little bit."