Colorado Avalanche coach Patrick Roy said Saturday that defenseman Nikita Zadorov is concussed.

Analysis:

The young defenseman sustained the injury in Friday's game against the Washington Capitals after a crushing hit by Tom Wilson, ending his night after just 8:43 of ice time. A big storm cloud was cast upon the Avs' playoff hopes even before the hard-hitting blueliner sustained the ailment, and given the complicated nature of concussions and the process involved, the team undoubtedly will have to search for a replacement ahead of Sunday's home tilt against the St. Louis Blues.