Manuel Balce Ceneta, Associated Press
Philadelphia's Steve Downie (27) chases down a puck against Washington. The Flyers won their seventh in their last nine.

WASHINGTON — Mike Knuble had his first two-goal game of the season, and the Philadelphia Flyers beat the Washington Capitals 6-4 Sunday for their seventh win in nine games.

Washington's Alex Ovechkin scored a goal in his first game since signing the richest contract in NHL history.

The Flyers took a 4-1 lead and chased goalie Olie Kolzig in the second period. The Capitals cut the deficit to 4-3 before Mike Richards put in a rebound with 11:37 remaining in the game to restore Philadelphia's two-goal lead.

Michael Nylander's 200th NHL goal with 6:51 to play pulled the Capitals within one, but Kimmo Timonen added an empty-netter in the final minute.

James Dowd and R.J. Umberger also scored for the Flyers, who played their third game in four days. Alexander Semin and Mike Green had goals for the well-rested Capitals, who had played only once in seven days. Washington had won four of five before playing its second game in a season-high, five-game homestand.

AVALANCHE 4, PANTHERS 3 (SO): At Sunrise, Fla., Milan Hejduk scored the winning goal in the shootout, lifting Colorado over Florida. Andrew Brunette had two goals for Colorado, which dealt Florida its sixth straight home loss. The Avalanche have eight straight road wins against the Panthers.

CANUCKS 4, BLUES 3 (SO): At St. Louis, Daniel and Henrik Sedin combined for five points, and Alex Edler decided a shootout for the second time in four games in Vancouver's victory over St. Louis.

ISLANDERS 3, SENATORS 1: At Ottawa, Marc-Andre Bergeron got his second power-play goal of the game early in the third and Mike Comrie scored later in the period, leading the New York Islanders over Ottawa. The Islanders hadn't beaten the Senators in Ottawa since March 15, 2003. Islanders' Dany Heatley, is expected to be out up to six weeks with a dislocated right shoulder.

WILD 4, COYOTES 1: At St. Paul, Minn., Josh Harding stopped 26 shots in Minnesota's win over Phoenix. Pavol Demitra, James Sheppard, Eric Belanger and Marian Gaborik scored for the Wild, winners of three straight.

BLACKHAWKS 3, PREDATORS 2 (SO): At Nashville, Tenn., Patrick Sharp scored a second-period goal and then netted the winner in the shootout, sending Chicago past Nashville.

DUCKS 4, SHARKS 3 (OT): At Anaheim, Calif., Doug Weight tied the game with 28 seconds left in regulation, and Francois Beauchemin scored 33 seconds into overtime for Anaheim. Capping the Ducks' comeback from a 3-1 deficit, defenseman Beauchemin scored his second of the season.

OILERS 2, FLAMES 1: At Edmonton, Alberta, Ales Hemsky and Shawn Horcoff each had a goal and an assist, and Edmonton stretched its winning streak to a season-high four games by beating Calgary. The Oilers (21-21-4) moved back to the .500 mark.