The Flyers late rally fell short on Tuesday in a loss to the Rangers (see story).
Per the team's official Twitter (via ProHockeyTalk), head coach Dan Bylsma announced Niskanen will be out the next 2-4 weeks with an ankle injury, which occured during the Penguins' shootout over Ottawa on Sunday. Niskanen slid skates-first into the boards during the first period and didn't return to the game.
Niskanen is wearing an orthopedic boot on his right foot, according to Shelly Anderson of the Pittsburgh Post-Gazette.
In the first five games of the season, Niskanen tallied three points, which is second on the team in scoring by a defenseman.
A "chilly" to Subban
PK Subban will return to the Montreal Canadiens after the two parties agreed on a two-year, $5.75 million contract, ending a long holdout between player and club.
Despite the return of a talented 23-year-old teammate, Montreal players gave a "surprisingly chilly" reaction, according to the Canadien Press (via ProHockeyTalk).
Defesemen Andrei Markov and Josh Gorges refused to say much on the matter.
Markov declined comment to reports until Sabban was present in the room, while Gorges simply said he is happy the ordeal is over.
"Like I said, it's good that it's over and done with and it's settled," Gorges said. "We don't have to have these talks in the morning of what-if-this and what-if-that. It's over. We can focus on playing hockey."
Canadiens coach Michael Therrien hinted Subban will have work to do with his teammates when he returns.
"One thing I demand of my players is to be good teammates," Therrien told NHL.com. "When a group of players buys into being good teammates, then you can move forward."
Last season, Subban tallied 36 points in 81 games with the Canadiens.