The Vancouver Canucks forward skated over to the penalty box to offer him what appeared to be some form of medication to help with the official's ailing back.
Early in the second period of the Canucks' 2-1 win over the Winnipeg Jets, Vancouver's Dale Weise and Winnipeg's Jacob Trouba got tangled up and took a tumble, clipping Walsh as he watched the play. It appeared Weise's skate caught the lower part of Walsh's back as he fell awkwardly to the ice.
The official attempted to stay in the game for a few minutes but eventually left the ice.
Watch the video above to see what happened.