The Montreal Canadiens suffered a fifth consecutive defeat after going down 2-1 to the Minnesota Wild in the NHL on Tuesday.
After setting the pace early in 2015-16, the Canadiens' recent slump has seen them lose nine out of their past 10 games.
The Wild had Jason Pominville and Charlie Coyle to thank, with goals in the first and third period respectively sealing the win over the Canadiens.
Montreal's poor form sees them in danger of being knocked off the top of the Atlantic division and possibly the play-off places, with several teams closing in on their lead.
A hat-trick from forward Joe Pavelski helped the San Jose Sharks to a 4-3 win against the Los Angeles Kings.
Tyler Tiffoli scored a double to give the Kings a 3-1 advantage with just over two minutes remaining in the second period, before Brent Burns went about reducing the deficit.
And two goals on the power play from Pavelski in the space of 92 seconds put the Sharks ahead as Burns confirmed the result when he scored into an empty net.
Patrick Sharp joined an elite club in the Dallas Stars' 4-0 shutout of the Chicago Blackhawks, with his goal meaning he has now scored against all 30 competing NHL clubs.
In other results, Johnny Gaudreau scored a hat-trick as the Calgary Flames defeated the Winnipeg Jets 4-1 and the St Louis Blues struck late to upstage the Boston Bruins 2-0.
Derick Brassard helped the New York Rangers past the Anaheim Ducks 3-2 in overtime, while a strong first half guided the New Jersey Devils to a 4-3 win against the Detroit Red Wings.
The Vancouver Canucks defeated Tampa Bay Lightning 2-1, Brandon Pirri scored the winner in a 2-1 shoot-out win for the Florida Panthers against the Ottawa Senators, while the Arizona Coyotes saw off the Toronto Maple Leafs 3-2.