Matt Niskanen of the Philadelphia Flyers celebrates after scoring a goal against the New York Islanders during the third period in Game Five of the...
Braden Holtby of the Washington Capitals blocks a shot by Reilly Smith of the Vegas Golden Knights as Matt Niskanen, Brooks Orpik, Tom Wilson and...
Reilly Smith of the Vegas Golden Knights is checked by Matt Niskanen of the Washington Capitals during the first period during the first period in...
Jonathan Marchessault of the Vegas Golden Knights defends Matt Niskanen of the Washington Capitals during the first period in Game One of the 2018...
Alex Ovechkin of the Washington Capitals celebrates with his teammates Matt Niskanen and Dmitry Orlov after scoring a goal on Andrei Vasilevskiy of...
Tom Wilson of the Washington Capitals celebrates with Matt Niskanen and Alex Ovechkin after scoring a goal against Andrei Vasilevskiy of the Tampa...
Matt Niskanen of the Washington Capitals and Sidney Crosby of the Pittsburgh Penguins slam into the boards while chasing after a loose puck during...
Dmitry Orlov of the Washington Capitals congratulates Matt Niskanen of the Washington Capitals after scoring a goal during the third period in Game...
Alex Ovechkin of the Washington Capitals congratulates Matt Niskanen of the Washington Capitals after scoring a goal during the third period in Game...
Matt Niskanen of the Washington Capitals scores at 5:13 of the first period against Alexandar Georgiev of the New York Rangers at Madison Square...
Jake Guentzel of the Pittsburgh Penguins and Matt Niskanen of the Washington Capitals go after the puck in the second period in Game Seven of the...
Matt Niskanen of the Washington Capitals celebrates his goal at 1:34 of the third period against the New York Islanders and is joined by T.J. Oshie...
Patrice Bergeron of Team Canada charges up ice with Matt Niskanen of Team USA chasing during the World Cup of Hockey 2016 at Air Canada Centre on...
Brad Marchand of Team Canada stickhandles the puck with pressure from Matt Niskanen of Team USA during the World Cup of Hockey 2016 at Air Canada...
Matt Niskanen of Team USA battles for position with Brad Marchand of Team Canada during the World Cup of Hockey 2016 at Air Canada Centre on...
Matt Niskanen of Team USA warms up prior to a game against Team Canada during the World Cup of Hockey 2016 at Air Canada Centre on September 20, 2016...
Matt Niskanen of the Washington Capitals congratulates Karl Alzner after he scored against the Boston Bruins during the second period at TD Garden on...
Andrew Shaw of the Chicago Blackhawks check Matt Niskanen of the Washington Capitals into the boards at the United Center on February 28, 2016 in...
John Tavares of the New York Islanders is hit into the boards by Matt Niskanen of the Washington Capitals during the second period at the Barclays...
Matt Niskanen of the Washington Capitals is introduced before playing the New Jersey Devils at Verizon Center on October 10, 2015 in Washington, DC....
Alex Ovechkin of the Washington Capitals celebrates with teammate Matt Niskanen after scoring a third period goal against the New Jersey Devils at...
Matt Niskanen of the Washington Capitals celebrates with Nicklas Backstrom after scoring a first period goal against the New York Islanders at...
Mike Green, John Carlson and Matt Niskanen of the Washington Capitals wait to take the ice for practice prior to the 2015 Bridgestone NHL Winter...
Matt Niskanen of the Washington Capitals celebrates his first period goal against the New York Islanders with teammates at Verizon Center on November...
Matt Niskanen and Joel Ward of the Washington Capitals celebrate after Ward scored against the Chicago Blackhawks in the second period during the NHL...
James Neal of the Pittsburgh Penguins celebrates his goal in the first period with teammates including Matt Niskanen against the Boston Bruins during...
Matt Niskanen of the Pittsburgh Penguins is called for roughing Brian Gionta of the Montreal Canadiens during the NHL game at the Bell Centre on...
Kyle Turris of the Ottawa Senators celebrates his first period goal as Jakob Silfverberg, Erik Karlsson, Mark Stone reacts against Tomas Vokoun, Matt...
Pascal Dupuis of the Pittsburgh Penguins celebrates his third period goal with teammates Sidney Crosby and Matt Niskanen against the Buffalo Sabres...
Matt Niskanen of the Pittsburgh Penguins celebrates his first period power-play goal against the Philadelphia Flyers, his first of the playoffs, in...
Ben Lovejoy of the Pittsburgh Penguins celebrates with Joe Vitale, Craig Adams and Matt Niskanen after Lovejoy scored a first period goal against the...
Ivan Provorov of the Philadelphia Flyers is congratulated by his teammate Matt Niskanen after scoring the game-winning goal during the second...
Ivan Provorov of the Philadelphia Flyers is congratulated by his teammate Matt Niskanen after scoring the game-winning goal during the second...
Nate Thompson of the Philadelphia Flyers is congratulated by teammates Ivan Provorov,Matt Niskanen and Tyler Pitlick after Thompson scored an...
Scott Laughton, Kevin Hayes, Ivan Provorov, James van Riemsdyk and Matt Niskanen of the Philadelphia Flyers celebrate the go ahead goal against the...
Matt Niskanen and Travis Sanheim of the Philadelphia Flyers trips up Jack Hughes of the New Jersey Devils during the first period at the Wells Fargo...
Derick Brassard of the New York Islanders is congratulated by his teammates Brock Nelson and Anthony Beauvillier after scoring a goal against the...
Brady Tkachuk of the Ottawa Senators is checked by Matt Niskanen of the Washington Capitals during the first period at Capital One Arena on February...
Brady Tkachuk of the Ottawa Senators is checked by Matt Niskanen of the Washington Capitals during the first period at Capital One Arena on February...
Matt Niskanen of the Pittsburg Penguins battles for the puck with Drew Miller of the Detroit Red Wings during an NHL game at Joe Louis Arena on March...
Jonathan Toews of the Chicago Blackhawks and Matt Niskanen of the Dallas Stars reach for the puck as Jeremy Morin of the Blackhawks skates up the ice...
Todd Marchant of the Anaheim Ducks hits Matt Niskanen of the Dallas Stars at the American Airlines Center on October 26, 2010 in Dallas, Texas.
Todd Marchant of the Anaheim Ducks hits Matt Niskanen of the Dallas Stars at the American Airlines Center on October 26, 2010 in Dallas, Texas.
Playing in his first NHL game, Nino Niederreiter of the New York Islanders hits Matt Niskanen of the Dallas Stars at the Nassau Coliseum on October...
Matt Niskanen of the Philadelphia Flyers looks on against the New Jersey Devils on October 9, 2019 at the Wells Fargo Center in Philadelphia,...
Sidney Crosby of the Pittsburgh Penguins skates against Matt Niskanen of the Washington Capitals in Game Six of the Eastern Conference Second Round...
Sidney Crosby of the Pittsburgh Penguins shakes hands with Matt Niskanen of the Washington Capitals after the Penguins defeated the Capitals 4-3 in...
Matt Niskanen of the Washington Capitals controls the puck against Andrew Cogliano of the Anaheim Ducks in the third period during their game at...
Brandon Saad of the Columbus Blue Jackets skates past Matt Niskanen of the Washington Capitals during the first period at Verizon Center on March 28,...
Nick Foligno of the Columbus Blue Jackets skates in front of Matt Niskanen of the Washington Capitals during the first period at Verizon Center on...
Matt Niskanen of the Washington Capitals poses for his official headshot for the 2015-2016 season on September 17, 2015 at Kettler Capitals Iceplex...
Matt Niskanen of the Washington Capitals stops a shot as Pheonix Copley defends in the second period against the New Jersey Devils at Prudential...
Matt Niskanen of the Dallas Stars skates against Niklas Hjalmarsson of the Chicago Blackhawks on April 6, 2010 at the American Airlines Center in...
Matt Niskanen of the Dallas Stars handles the puck against the Edmonton Oilers on April 2, 2010 at the American Airlines Center in Dallas, Texas.
Matt Niskanen of the Dallas Stars handles the puck against the Edmonton Oilers on April 2, 2010 at the American Airlines Center in Dallas, Texas.
Matt Niskanen of the Dallas Stars handles the puck against the Edmonton Oilers on April 2, 2010 at the American Airlines Center in Dallas, Texas.
Matt Niskanen of the Dallas Stars handles the puck against the Edmonton Oilers on April 2, 2010 at the American Airlines Center in Dallas, Texas.
Steve Ott, Jamie Benn, James Neal, Matt Niskanen and Brad Richards of the Dallas Stars celebrate after a goal against the Los Angeles Kings on March...
Matt Niskanen of the Dallas Stars battles for the puck against Rich Clune of the Los Angeles Kings on March 27, 2010 at Staples Center in Los...
Matt Niskanen of the Dallas Stars skates with the puck against Alexander Frolov of the Los Angeles Kings on March 27, 2010 at Staples Center in Los...