Tyler Seguin was demoted from first-line center to third-line duty with the Boston Bruins last season but his new coach, Lindy Ruff, plans to use him as the No. 1 center in the coming season with the Dallas Stars.
James Wisniewski left Thursday's game against Nashville because of a lower-body injury.
Robin Lehner exited Thursday's game against Ottawa with an apparent leg injury.
Clarke MacArthur (upper body) will play in Thursday's game against the Buffalo Sabres.
Jacob Markstrom will miss at least three weeks due to a lower-body injury.
Anton Slepyshev is projected to open the season on a line with Taylor Hall and Connor McDavid.
Cody Eakin will start the campaign on the Stars' top line.
Ales Hemsky is projected to play on the fourth line in Dallas' season opener.
Jonas Hiller will start in Calgary's game against Vancouver on Saturday.
Henrik Lundqvist is expected to start on both Friday and Saturday.
Brian Gionta (lower body) will not participate in Thursday's opener.
Raffi Torres has confirmed that he won't appeal his suspension.