Dallas Stars put Toby Petersen on IR
Also, forward Toby Petersen was placed on injured reserve with a leg injury, and the Stars recalled defenseman Philip Larsen from the minor leagues.
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"He was skating backwards and I was making a turn," Niskanen said Thursday afternoon at the team's practice facility in Frisco. "By the time I got my head up and saw who was coming, he was already coming 100 miles an hour and hit me with the back of his helmet.
"It was kind of a weird -- a really, really weird situation."
Skrastins suffered a broken nose and a chipped tooth and is being further evaluated by doctors.
"[Skrastins] was a little woozy after the game," Crawford said. "We'll just have to see how he progresses.
Niskanen has a cut on the palm of his hand.
"He won't be playing for at least tomorrow, and he's doubtful for Sunday as well," Crawford said. "You're hopeful it's not going to be too long, but it's right in the palm of his hand and that's a pretty sensitive area for a puckhandling defenseman."
Petersen's move to IR was retroactive to Sunday, the day before he sustained a lower-body injury during practice. The 32-year-old has three points in 34 games.
"We're going to keep him out a few days," Crawford said. "We don't think it's anything severe."
Larsen has played 29 games for the Texas Stars of the AHL. He has 13 assists and eight penalty minutes. The 21-year-old also has played three games for Dallas this season.
Mark Stepneski covers the Stars for ESPNDallas.com. You can follow him on Twitter. Information from The Associated Press was used in this report.