The Toronto Maple Leafs were considered a Stanley Cup favorite after signing John Tavares last summer. They continued to be one after getting off to a red-hot start. Now with less than four weeks left in the NHL regular season, most observers are skeptical that the Leafs can get past Boston when the playoffs start next month. Toronto is dynamic offensively with Auston Matthews, John Tavares and Mitch Marner leading the way. They also have one of the league’s top goalies in Frederik Andersen. But the imposing Bruins and a subpar blueline appear to be hurdles that may not be able to get over.