Washington's Alexander Ovechkin scored his second goal of the game and the 499th of his career at 1:25 of overtime to give the Capitals a 4-3 win at the New York Rangers on Saturday.
Anaheim's Ryan Getzlaf netted the deciding goal in the fourth round of the shootout to give the Ducks a 4-3 win against St. Louis on Friday, making it 10 successive home victories over the Blues.
Reilly Smith and Vincent Trocheck scored 8 seconds apart in the first period as the Florida Panthers extended their club-record win streak to 11 games with a 3-2 victory over the Ottawa Senators on Thursday night.
Ottawa's Bobby Ryan scored twice, including the overtime winner, to lift the Senators to a 3-2 win at St. Louis, dropping the Blues further off the pace in the NHL Central Division.
Auston Matthews had a hat trick to lead the United States to a 7-0 victory over the Czech Republic on Saturday in the quarterfinals of the world junior hockey championship.
Unheralded forward John Scott was among the four captains chosen by fans for the NHL All-Star Game.
Resurgent Sidney Crosby scored two power-play goals, Marc-Andre Fleury returned from a concussion and made 38 saves and the Pittsburgh Penguins beat the New York Islanders 5-2 on Saturday night.
Boston native Mike Condon stopped 27 shots to lead the Montreal Canadiens to a 5-1 victory over the Boston Bruins on Friday in the NHL Winter Classic at the home of the Super Bowl champion New England Patriots.
Dallas extended its lead atop the NHL Central Division to nine points by beating Nashville 5-1 on Thursday, helped by rookie Mattias Janmark scoring his sixth December goal to break a tie late in the second period.
Auston Matthews had a goal and an assist to lead the United States to a 4-1 victory over Denmark on Thursday in the world junior hockey championship.