New York Rangers left wing Rick Nash sustained a back injury at practice Thursday and is day-to-day.

"I just threw it out, I couldn't move, it locked up," Nash told Northjersey.com. "I've had locked up backs, but the last two and a half years I've been pretty good that way. I just have to put my trust in the trainers ... and get it to keep moving. It felt good the first three drills, then I twisted it and it went out on me."

Nash, who has one goal and six points in 12 games, was injured during a shooting drill, Rangers coach Alain Vigneault said.

"I don't know about tomorrow," Vigneault told the website. "These things can turn around quickly or sometimes they might go for a couple of days. [Trainer Jim Ramsay] was just telling me this happened two years ago and he missed three days or so. I don't know if it's the exact same thing."

The Rangers play at the Colorado Avalanche on Friday and at the Arizona Coyotes on Saturday.

"We'll see how I feel in the morning," Nash told BlueshirtsUnited.com. "We need to go back and do more treatment, hopefully get it moving and loosened up."

Vigneault said forward Emerson Etem would play if Nash cannot.