Avalanche center John Mitchell was taken to a hospital Tuesday night for X-rays on his back after a scary collision into the boards.

Mitchell was hurt after losing an edge on his skates while trying to check Montreal's Lars Eller. Mitchell slid back-first into the end boards and was down for a couple of minutes.

Mitchell did skate off the ice under his own power, accompanied by trainer Matt Sokolowski.

The Avs had no immediate word on the extent of the injury, although Mitchell did accompany the team to Winnipeg, where it will play Wednesday night.

"We'll know more (Wednesday)," Avs coach Patrick Roy said.

Stastny returns. Avs center Paul Stastny was back at his usual center spot between wings Gabe Landeskog and Nathan MacKinnon after missing a few games with back problems.

"It felt good out there. Nice to be back in the lineup," said Stastny, who was hurt 11 days ago after a check from St. Louis defenseman Jay Bouwmeester at the Pepsi Center.

Stastny had an assist on Colorado's first goal, by MacKinnon.