The Toronto Maple Leafs have been able to put together one of the strongest forward corps in the NHL during the past few years. So much so that it's known as the "Core Four" across the league. That foursome includes team captain Auston Matthews,

William Nylander netted his second career hat trick and Matthew Knies collected one goal and one assist as the visiting Toronto Maple Leafs rode a four-goal second period to a 6-3 victory over the Calgary Flames on Tuesday.