Feb 5, 2013; San Jose, CA, USA; Referees try to break up the fight between San Jose Sharks center Andrew Desjardins (10) and Chicago Blackhawks defenseman Duncan Keith (2) after Desjardins hit to the face on Chicago Blackhawks center Jamal Mayers (not pictured) during the second period at HP Pavilion. Mandatory Credit: Kelley L Cox-USA TODAY Sports