The much bigger Zadorov stepped directly into the Raymond for a huge open-ice hit, and made full contact with Raymond's head. Zadorov was given a major penalty and an ejection for the hit, and Raymond was pulled from the game by concussion spotters.
Honestly, it appears that Zadorov's shoulder makes initial contact with Raymond's chest, but as he continues into the hit, Zadorov's head makes contact with Raymond's. With this detail, it'll be interesting to see if the NHL Department of Player Safety decides to pursue supplemental discipline for the play.