#6 Gzim Selmani (Rezar of Authors of Pain) (6-2)
Possessing triple the amount of wins than losses on his record, the man known as Rezar from the Authors of Pain once fought out of the infamous Dutch MMA camp Golden Glory.
His biggest win was a guillotine choke victory over current Bellator fighter Oli Thompson in BAMMA, a British MMA promotion, in 2014. He most recently fought and lost to Daniel Gallemore in Bellator before signing with WWE in 2015.
As part of the villainous Authors of Pain tag team with partner Akam and manager Paul Ellering, the Albanian Selmani was co-holder of the NXT Tag Team Championships through the majority of 2017.
The team also performed in several critically acclaimed matches, including a triple threat tag team match with The Revival and #DIY at Takeover: Orlando and a main event tag team ladder match with #DIY at Takeover: Chicago.
Rezar and Akam have since emerged on the WWE's main roster where they've already managed to secure a brief run as RAW Tag Team Champions.