Maple Leafs forward Auston Matthews has been ruled out for Game 6 of the first-round Stanley Cup playoff series against the Bruins on Thursday.

Toronto trails the Bruins 3-2 in their best-of-seven and face elimination from the postseason with another loss.

Matthews missed the third period of Game 4 and all of Game 5 with what the Leafs have deemed a "lingering" illness.