The Pittsburgh Penguins scored twice on the power play to beat the New York Islanders 3-1 and hand the visitors their first loss of the season.

The Penguins (3-1-0) conceded the first goal but recovered to win for the eighth time in their last nine regular-season meetings with the Islanders.

Elsewhere, the Ottawa Senators continued their early season roll by defeating the Columbus Blue Jackets 3-2 for their fourth consecutive victory.

Joe Pavelski and Logan Couture each scored a power-play goal and Antii Niemi turned aside 34 shots as the unbeaten San Jose Sharks scored a 4-2 road win over the New Jersey Devils.

Boston coasted to an easy 4-0 road win over the Buffalo Sabres, with defensemen Dougie Hamilton, Zdeno Chara and Torey Krug all scoring for the Bruins.

Other results:

Canadiens 3, Avalanche 2

Capitals 2, Panthers 1 (shootout)

Red Wings 1, Maple Leafs 0 (overtime)

Flyers 6, Stars 5 (overtime)

Blackhawks 2, Predators 1 (overtime)

Blues 6, Coyotes 1

Lightning 4, Canucks 2

Source: Reuters