On the broadcast, MSG noted that Mats Zuccarello will not return to the game after taking a Ryan McDonagh slapshot to the face. You can view the GIF here. Jesper Fast took Zuccarello’s spot on his line, and the Rangers have been playing with 11 forwards.
It’s worth noting that this is the playoffs, and usually players come right back to the bench after something like this. Since Zuccarello isn’t returning, it may be serious.