"Adam Hall laid a solid, clean hit on Matt Carkner in the corner of ScotiaBank Place early in a game against Ottawa on Jan. 5. Carkner, one of Ottawa's resident enforcers, took exception and challenged Hall to drop the gloves.

Though not considered a fighter by any means, Hall knows how to handle himself in those situations with 10 previous fights in the NHL, according to HockeyFights.com web site. So Hall obliged the challenge from Carkner, who has 39 career fights in just three-plus NHL seasons.

But during that fight, Hall was off balance and as he fell to the ice, his body got twisted around and his left arm, in particular, moved in a direction it wasn't meant to go. The result was a partial tear and an excess of swelling around Hall's bicep muscle that knocked him out of action."