The Maple Leafs' Auston Matthews leaves the game after taking a knee from the Ducks' Radko Gudas. (0:26) The Toronto Maple Leafs don't believe the NHL went far enough in punishing Anaheim Ducks defenseman Radko Gudas for a hit that ended star captain Auston Matthews' season. The NHL Department of Player Safety handed Gudas a five-game suspension on Friday for "a forceful, dangerous and direct knee-on-knee collision" with Matthews in the second period of Toronto's win over the Ducks on Thursday night. Matthews had to be helped from the ice. The Leafs announced Friday that their 28-year-old captain will miss the rest of their season because of a Grade 3 MCL tear and quad contusion. "I think the league could've done a little bit more, seeing as our best player [and] our captain [is] not going to be with us for the rest of the year. That's a big loss," said forward Matthew Knies, a linemate with Matthews this season.…