Florida Panthers' Shane O'Brien (74) and Tampa Bay Lightning Ryan Callahan (24) fight for the puck during the first period of a NHL hockey game in Sunrise, Fla., Thursday, Oct. 2, 2014.
Florida Panthers' Shane O'Brien (74) and Tampa Bay Lightning Ryan Callahan (24) fight for the puck during the first period of a NHL hockey game in Sunrise, Fla., Thursday, Oct. 2, 2014. J Pat Carter AP
Florida Panthers' Shane O'Brien (74) and Tampa Bay Lightning Ryan Callahan (24) fight for the puck during the first period of a NHL hockey game in Sunrise, Fla., Thursday, Oct. 2, 2014. J Pat Carter AP