"Peter Mueller did not look like a particularly happy camper when he trudged into the dressing room after Avalanche practice Sunday at the Air Canada Centre. A brief interview with the left winger only served to confirm his disappointment.

While Mueller took part in a full practice, it appears likely he will miss his third consecutive game tonight when the Avs play Toronto.

All signs point to Mueller having had a return of concussion symptoms, although the Avs and Mueller are declining to give specifics about why he's missing games. He missed all of last season with a concussion."