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.
It was a big dream. [Messi] is probably the best athlete out there, so it's a big honor, for [Kuznetzov] as well. It's maybe a once in a lifetime opportunity to meet the best player in soccer right now. I'm a big Barcelona fan and Messi fan, so it's huge. You can take [Michael] Jordan, [Mark] Messier, [Wayne] Gretzky, those kinds of [people]. It's an honor to meet. It's nice to be in that position.
— Washington Capitals forward Alex Ovechkin told told Monumental Network after meeting soccer star Lionel Messi prior to Argentina's practice at Fed Ex Field in Landover, Md. on Friday