Since the NHL staged its first Winter Classic on Jan. 1, 2008 outdoor games have proved to be extremely popular with fans as well as players. In 2016, the traditional New Year's Day event returned to Boston. Fenway Park hosted the Bruins and visiting Philadelphia Flyers in 2010. This time, the site was the more modern Gillette Stadium, home of the NFL's Patriots. The Bruins' foes were their traditional bitter rivals, the Montreal Canadiens.