Reaves, who has missed the Blues' past three games, is expected to replace forward Scottie Upshall on St. Louis' fourth line against Pittsburgh (12-8-0). In 14 games this season, Reaves does not have a point and has three shots.
"He's uncomfortable to play against," Blues coach Ken Hitchcock said. "He's had very much an up-and-down season, most of it based on health. He's healthy now. He feels good. We've conditioned him. This is about as far as we can go with him. The rest is kind of going to be in his court."