Kero has entered the league's concussion protocols, Bruce LeVine of Dallas Stars Radio reports, and should be considered out indefinitely.

EDGE Analysis

Kero -- who was taken off the ice on a stretcher during Saturday's clash with Chicago -- should probably be expected to miss at least the team's next three outings. Even once cleared to play, the Michigan native is far from a lock for the lineup and may have to settle for a spot in the press box from time to time.