Early in the first period of Game 4 between the Calgary Flames and Edmonton Oilers, Zack Kassian and Josh Archibald both decided they were going to finish their checks hard. Unfortunately for them, they both picked the same target. Even more unfortunate, they both missed Nikita Zadorov, levelling each other instead.
Initially, Archibald looked to take the worst of the hit, being sent face first into the boards by the impact. Kassian, however, was the one who had to leave the game briefly to get some repairs done. Both Edmonton forwards would return to the game.
Here is a second angle that shows Kassian's path better: