Andrei Vasilevskiy made a franchise-record 54 saves, Nikita Kucherov scored twice and the NHL-leading Tampa Bay Lightning won its sixth consecutive game by beating the host Capitals 5-4 in overtime Wednesday in a potential playoff preview.

Victor Hedman scored 3:01 into overtime to keep the Lightning rolling in its first game since clinching the Presidents' Trophy and home-ice advantage throughout the playoffs.

Vasilevskiy was on top of his game as Washington set a franchise record with 58 shots. He stopped countryman Alex Ovechkin on a rush chance midway through the third period during one of the finest performances of his career, and rebounded in OT after allowing Evgeny Kuznetsov to tie the score with 52.6 seconds left in regulation.

Kucherov's two goals came on the power play and gave him 37 overall this season and increased his league-leading point total to 119. That's 14 more than the next-closest player, reigning Art Ross Trophy winner Connor McDavid.

Capitals defenseman Michal Kempny's left leg bent awkwardly as he went down to the ice during a tussle with Cedric Paquette, and he needed help from trainers to get down the tunnel to the locker room. Kempny did not return with what the team called a lower-body injury.

Toronto 4, Buffalo 2: John Tavares and Austin Matthews each had a goal and assist, and the visiting Maple Leafs won for just the second time in six games, beating the Sabres.

Notes

• The Red Wings signed goalie Jimmy Howard to a $4 million, one-year extension.

• The Penguins called up former Minnesota-Duluth standout Adam Johnson. He's expected to make his NHL debut Thursday, which would make him the eighth member of the 2016-17 Bulldogs' national runner-up team to play in the NHL.

• Dallas' Cotton Bowl Stadium will host the Stars vs. the Predators in the NHL's 2020 Winter Classic on Jan. 1. It'll be the southernmost outdoor game for the NHL.