CALGARY, Alberta (AP) — Brian Burke believes the Montreal Alouettes signing of Michael Sam is a tipping point in professional sports. The Calgary Flames president of hockey operations, who co-founded You Can Play in memory of his late son, says the arrival of the openly gay player in the CFL will be a watershed moment. "I think it's huge," Burke told The Canadian Press on Tuesday. "To me, this is one of those 20, 30, 40 years from now, people will look back and say 'remember when Michael Sam signed with the Alouettes?' "We know we have gay athletes in...