4. John Cena joins The Nexus
After losing against Nexus leader Wade Barrett at WWE Hell in a Cell 2010, John Cena had to join the Nexus stable because of the match stipulation.
After not helping Barrett to win the WWE Championship from Randy Orton at WWE Survivor Series 2010, he was (kayfabe) fired from the WWE.
Cena then appeared on several Houseshows under a mask as “Juan Cena” and still showed up backstage during RAW, before getting officially rehired a few weeks later.
