#3. Brock Lesnar and Tajiri team up
Brock Lesnar's initial run in WWE saw him become WWE Champion in quick succession, when he defeated The Rock at Summerslam 2002. Soon after, WWE came up with a Tag Team Tournament to crown new SmackDown Tag Team Champions at WWE No Mercy 2002. One of the quarterfinals saw Brock Lesnar team up with Tajiri of all people to take on Rey Mysterio and Edge.
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The fast-paced pair of Mysterio and Edge somehow stole a victory, which enraged Brock to no end. He went on to unleash a brutal attack on his rivals, but this wasn't the end. Brock hit a thunderous F5 on Tajiri, his own partner. Suddenly, Undertaker hit the ring and began attacking Lesnar, who immediately fled the spot. Watching the behemoth in Brock team up with a cruiserweight like Tajiri wasn't something anyone ever expected to see.