Coach Patrick Roy said after the morning practice that Mitchell is out with a head injury and is "day-to-day." Sarich is sidelined with an aching back, but Roy said he's "feeling better."
Sarich hasn't played since April 1. Mitchell sat out the last two games of the regular season.
The Avalanche are already without leading scorer Matt Duchene, who missed the last eight games of the season after damaging the MCL in his left knee when he collided with a teammate.
Stay Connected
NHL.TV™
NHL GameCenter LIVE™ is now NHL.TV™.
Watch out-of-market games and replays with an all new redesigned media player, mobile and connected device apps.
Introducing the new official NHL App, available for iPhone, iPad and Android smartphones and tablets. A host of new features and improved functionality are available across all platforms, including a redesigned league-wide scoreboard, expanded news coverage, searchable video highlights, individual team experiences* and more. The new NHL App on your tablet also introduces new offerings such as 60fps video, Multitasking** and Picture-in-Picture.
*Available only for smartphones
** Available only for suported iPads