#4. Rey Mysterio became a Grand Slam Champion
Rey Mysterio had a bizarre match with Samoa Joe. It ended in less than two minutes and it featured Samoa Joe getting busted open due to a botch by the now-United States Champion.
Mysterio won in controversial fashion because Joe's shoulders were up, but the entire match seemed to be rushed and it came across as odd. Either way, Rey Mysterio's United States Championship win now adds him to the list of Grand Slam champions in WWE.
He had won the World Heavyweight Championship, the WWE Championship, the tag team championship and even the Intercontinental Championship. This completes his title haul and further adds to his legacy in WWE. He's called the "biggest little man in WWE history" and with good reason.
It was also interesting to see Dominic out again. Could WWE seriously be planning on signing him soon?