#4 Nikki Bella turns on Brie - SummerSlam 2014
The Bella Twins were massive stars during the Divas Era. In 2014, Brie Bella became a part of the ongoing storyline between her real-life partner, Daniel Bryan, Stephanie McMahon, and Kane.
In the build-up to SummerSlam 2014, Brie was told that she would be fired if Bryan didn't relinquish his WWE Heavyweight Championship. This lead Brie to "quit", slapping McMahon as she walked out.
A former WWE writer just went after JBL for his comments HERE
McMahon punished The Bellas by putting Nikki into a series of handicap matches. Brie returned and was later arrested on screen as a punishment. McMahon would drop the charges against her if Brie took part in a match against her at SummerSlam.
During the showdown between Stephanie McMahon and Brie Bella at SummerSlam, they both managed to get some great offense in on one another. Triple H entered the fray and interfered in the match followed by Nikki Bella.
Brie attacked Triple H after he had pulled the referee out of the ring, and then Nikki climbed in. It looked as though Nikki was about to help her sister, but she punched her in the face, enabling McMahon to win and turning heel in the process.