We don't know where it happened, but there's video on YouTube from a women's volleyball match, where one of the players takes a spike to the FACE.
--Then the ball bounces off her and lands on the sideline . . . where someone runs by and TRIPS on it. It all happens in about two seconds.
(--Search for "Power Volleyball Spike Takes Out One Player and One Guy on Sideline." It happens at :12.)