The team announced the move on Monday, when it also recalled forward Chris Durno from the Lake Erie Monsters of the AHL to fill Tucker's place on the roster.
Ruutu rode Tucker into the boards in the second period on Friday night. The Avalanche forward's face hit the glass and he fell to the ice unconscious.
Team doctors and trainers placed a neck brace on Tucker, who lay motionless for several minutes, and strapped him to a backboard. He was taken off the ice and to the hospital, where he was released Saturday.
The NHL suspended Ruutu three games for a boarding infraction.
You can be hyped all you want, but his game will speak for itself. He's obviously going to be a great player so we've got to make sure we keep an eye on him. Whether it's his first game or his 1,000th game, our job is to take care of business, shut him down.
— Blues defenseman Alex Pietrangelo on facing ballyhooed Oilers rookie Connor McDavid, who is making NHL debut in St. Louis
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