The centre, one of the Kings' best players on faceoffs, has been sidelined with a suspected concussion since he was struck with an illegal hit to the head by San Jose's Raffi Torres in Game 1 of Los Angeles' second-round series against the Sharks.
Torres was suspended by the NHL for the remainder of the series.
Stoll has been skating with the team for several days. He had seven goals and 11 assists in 48 games in the regular season.
Once again, it shows character in this dressing room. Once again, there's no quitting in here. We all wanted this so bad and we worked so hard to get home-ice advantage and we weren't going to let this one slide.
— Colorado Avalanche captain Gabriel Landeskog on his team's OT Game 1 win vs. Minnesota Wild