15 Most Brutal Brock Lesnar Moments

13. Concussing The Undertaker At WrestleMania

Event: Wrestlemania XXX

Date: 2014

The Undertaker single defeat at Wrestlemania wasn't even a good match — it was a slow, plodding affair, and it was completely unexceptional, aside from breaking the streak. But perhaps that was unintended — Lesnar reportedly gave the Undertaker a concussion early in the match, which explains why Taker had that far-off look in his eye the entire time. 

Once he got backstage, Taker collapsed, and had to be rushed to the hospital. Vince McMahon missed the main event of Wrestlemania to be by his loyal employee's side.