David Clarkson (back) has been placed on long-term injured reserve.
David Clarkson remains out indefinitely with a chronic lower-back problem.
David Clarkson has failed his physical, so he won't be with Columbus at the start of training camp.
David Clarkson is dealing with back issues.
David Clarkson (lower body) will not play in Toronto for the Blue Jackets, Wednesday night.
David Clarkson (lower body) will not be in the lineup Saturday.
David Clarkson has a lower-body injury.
David Clarkson is injured again, according to Coach John Tortorella.
David Clarkson, Jared Boll and Cody Goloubef will each be scratched from Thursay's match with the Devils.
David Clarkson (upper body) has been taken off of the injured reserve list.
David Clarkson (upper body) is taking part in Columbus' Thursday morning skate.
David Clarkson (upper body) took part in Thursday's practice.
David Clarkson (upper body) has gotten some time on the ice with assistant coach Kenny McCudden over the last few days.
It would be surprising if David Clarkson (upper body) returns in the not too distant future.