Despite missing the majority of two seasons, Pittsburgh Penguins captain Sidney Crosby hasn’t been slowed down since returning from his concussion problems. Crosby took shots to the head in back-to-back games in January 2011, and has struggled with concussions and concussion-like symptoms for over a year. The Penguins superstar returned 20 games into the 2011-12 season and accumulated 12 points in eight games. His return halted when his concussion symptoms returned, perhaps due to an elbow from David Krejci. “Sid the Kid” has been back in action since March 2012. Since then, he hasn’t missed a beat. Here are three ways Crosby is proving he’s over his concussion problems.