4. WWE SummerSlam 2014
At the August 17, 2014 WWE SummerSlam 2014 PPV from the Staples Center in Los Angeles, California, Brock Lesnar challenged WWE World Heavyweight Champion John Cena for the title.
After a 16 minute match and 16 (!!!) German Suplexes, Brock Lesnar defeated John Cena and became the new Undisputed WWE World Heavyweight Champion.
Nobody has ever defeated John Cena that easily, at least not since John Cena became a star in the WWE.