Gretzky calls 3-on-3 OT 'one of best things in 20 years'

Wayne Gretzky is an avid supporter of 3-on-3 overtime in the NHL. "I think it's one of the best things we've done in hockey in the last 20 years," Gretzky told "Hockey Central" on Wednesday. "It's exciting for the fans. I know some of the playe...