Backstrom has 35 points (nine goals, 26 assists) in 39 games this season, and Capitals general manager Brian MacLellan said he believes he'll continue to be a top player because of his style of play.
"He's a player that thinks the game well," MacLellan said. "His game is not based on speed. It's more being in the right spot, making the right play, reading what's going on on the ice. He's in the right spots, understands the game, understands how to make players better. He's a playmaker, he's a first power-play guy. I think those skills that he has age well and he'll be able to produce in his late 30s."
Backstrom said he doesn't have any intention to retire when the new contract expires.
"But I mean, it is a good start," Backstrom said. "We will see what the team wants after that."
Selected by Washington with the No. 4 pick in the 2006 NHL Draft, Backstrom is second in Capitals history to forward Alex Ovechkin with 908 points (240 goals, 668 assists) in 934 games (Ovechkin has 1,255 points; 686 goals, 569 assists). Backstrom is the Capitals' all-time leader in assists and is the only active player in the NHL with at least 50 assists in six consecutive seasons.
Since his NHL debut on Oct. 5, 2007, Backstrom leads the NHL in assists even though he ranks 17th in games played during that span. He has had at least 60 assists five times, including an NHL career-high 68 in 2009-10.
Backstrom is second to Ovechkin in Capitals history with 106 points (36 goals, 70 assists) in 123 Stanley Cup Playoff games (Ovechkin has 126 points; 65 goals, 61 assists). Backstrom had 23 points (five goals, 18 assists) in 20 games in the 2018 postseason, when Washington won its first Stanley Cup championship.