Alexander Steen, who has not played for the Blues since suffering a high ankle sprain in a collision on Nov. 6, is returning Saturday to play against Chicago.
Flyers forward Oskar Lindblom, who is tied for team lead with 11 goals this season, will undergo further testing and evaluation before beginning treatment for Ewing's sarcoma, a rare type of bone cancer.
Blackhawks defenseman Calvin de Haan on Tuesday injured the same right shoulder that he had surgery on this past offseason, and the team placed him on IR.
Former Bruins goaltender Tim Thomas, who was inducted into the U.S. Hockey Hall of Fame, described the devastating effects of a concussion in his final season with the Panthers.