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.
I kept refreshing the page on the NHL website after the second round and I was shocked he lasted that long. I'm sure the Coyotes were pretty happy to get him. He's such a good player and he plays big in big games.
— Arizona Coyotes forward Henrik Samuelsson on prospect Edgars Kulda being draftedd