Thompson manages to grab hold of Richard — the side of his face smeared with blood from Laycoe’s original strike — but cannot restrain his anger. Richard thinks Thompson, who once played for the Bruins himself, holds him so Laycoe can hit him.
This passage describes a tense moment where Thompson grabs Maurice Richard, whose face is bloodied from an earlier blow by Laycoe. Richard remains furious, believing that Thompson, a former Bruins player, is holding him in place so Laycoe can strike him again.