Calgary defenceman Robyn Regehr has two goals and two assists for the Flames this season. ((Jeff McIntosh/Canadian Press))

Defenceman Robyn Regehr will be in the lineup when the Calgary Flames host the Colorado Avalanche Tuesday night.

Regehr fell to the ice after being hit in the side of his head with a puck during Sunday's 4-1 loss to the Vancouver Canucks. The rugged blue-liner was able to get up without any help and headed to the locker-room but did not return to the game.

Regehr was back on the ice with his teammates for Calgary's practice Monday and insists he will be ready to play against the Avalanche.

"It feels like I got hit with a slapshot," Regehr told the Flames' official website.

Regehr didn't require any stitches, explaining the main cause for concern was that he might have suffered damage to his eardrum.

"The puck was rolling so I think I was lucky not to get cut more," said Regehr. "I just caught it out of the corner of my eye at the last second so I didn't have time to react. But everything was good this morning [Monday]. I am looking forward to playing Tuesday."

The news isn't so promising for Flames winger Marcus Nilson, who suffered a concussion after being hit into the boards by the Canucks' Trevor Linden in Sunday's game.

Nilson did not skate with the team on Monday and Flames coach Mike Keenan said he will not play Tuesday and could be doubtful for Thursday's contest against the Chicago Blackhawks.

Looking ahead to Colorado, Keenan said he would like to see a more consistent effort from his players. Calgary outshot the Canucks 30-21 but went scoreless on the power play for the second straight game.

"The word to use would be inconsistency," Keenan said. "We have a good power-play night and a bad penalty-killing night and we flip-flop, or great goaltending and then not the best."