Complex sentence: Carcillo, along with Shawn Thornton of the Boston Bruins, was a part of the first fight in an outdoor NHL game, in the Bridgestone 2010 NHL Winter Classic.
Split into simpler sentences: Carcillo, along with Shawn Thornton of the Boston Bruins, was a part of the first fight in an outdoor NHL game. He and Thornton fought in the Bridgestone 2010 NHL Winter Classic.