By Matt Hladik There was a meeting of legends backstage at the Super Bowl last night when play-by-play announcer Al Michaels had a conversation with rapper Eminem. Apparently, the 49-year-old Slim Shady is a massive fan of Michaels, 77, who called Super Bowl LVI for NBC. In the video below, Eminem tells Michaels he is the “GOAT” and adds that he watches less-than-enticing games just to hear the five-time Sports Emmy winner broadcast the action. Not stopping there, Em addresses the rumors that Michaels is retiring–“I’ll be somewhere,” Al responded–telling him he has plenty of time left. This is…