Copley made 35 saves for his first career shutout and the Capitals beat the Ottawa Senators 4-0 on Saturday night.
Brett Connolly had a goal and an assist to give Copley all the support he needed.
''We talked about (the shutout) between the second and third,'' said Connolly. ''It's good to see him get that shutout. It's obviously a big moment for him and he's played so well this season.''
Copley is the first rookie goalie to blank the Senators since James Reimer in 2011.
''The guys did a great job blocking shots and denying them great chances,'' said Copley. ''It was a real good team win.''
The score was hardly flattering to the Senators, but coach Guy Boucher wasn't too disappointed by the effort.
''It wasn't a 4-0 game, that's for sure,'' Boucher said. ''We played really well and had so many scoring chances and their goalie stoned us.''
Washington took a 3-0 lead midway through the second when Vrana stole the puck from Mark Stone and beat McKenna with a flashy move. Kempny made it 4-0 at the 13-minute mark when his point shot deflected off Cody Ceci.
The Senators trailed 2-0 after the first period, but it could have been more if it wasn't for McKenna.
Connolly opened the scoring at 1:32 when he redirected Jonas Siegenthaler's point shot.
''When we're ahead in games we're definitely better,'' Connolly said. ''We know when we're behind we have a lot of guys that can hurt you as well, but when we get the first one we settle in and definitely on a back-to-back it makes it easier so it was good to get that first one.''
The Capitals took a two-goal lead late in the period when Niskanen got behind Ceci and tipped Nicklas Backstrom's pass for his fifth of the season.
NOTES: With Anderson dealing with an upper-body injury, Marcus Hogberg was recalled from the American Hockey League's Belleville Senators. ... The Senators honored LPGA golfer and Smiths Falls, Ontario, native Brooke Henderson prior to the game and had her drop the puck. ... Ottawa's Tom Pyatt and Max Lajoie were healthy scratches. ... Washington's Tyler Lewington made his NHL debut Saturday night.
Capitals: Host Carolina on Thursday night.
Senators: Play at the New York Islanders on Friday night.
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