Professional wrestling is built around upsets. The art of the upset is something that can draw absolutely huge reactions from the crowd and provide twists nobody saw coming.
WrestleMania has been an event where we have seen some huge upsets in the ring, with underdogs and rank outsiders coming from nowhere to pick up historic victories.
That has been evident in the previous 29 editions of the show—all the way through to last year's edition at WrestleMania 29.
However, for all the shocks and upsets, there have been a select few that rank higher than the rest. These select few feature right here on this list of biggest upsets in WrestleMania history.