Wayne Presley, Craig Simpson and Alexander Mogilny scored third-period goals and Dominik Hasek made 24 saves Monday night, leading the Buffalo Sabres to a 3-0 victory over the Toronto Maple Leafs at Toronto.
It was the first time this season that Toronto, which has the best record in the NHL at 17-5-4, was shut out.
Dallas 6, Edmonton 5--Dave Gagner scored at 2:26 of overtime for the victory at Edmonton.
The Oilers, who have lost 13 games by two goals or less, twice fought back from two-goal deficits to force overtime.
Vancouver 2, Chicago 1--Dixon Ward scored 15 seconds into overtime to give the Canucks the victory at Vancouver.
Hartford 4, Ottawa 2--Bryan Marchment scored the go-ahead goal early in the third period at Ottawa.