As he readies to fight industry giant Israel Adesanya at UFC Saudi Arabia, Nassourdine Imavov’s demeanor tells you exactly where he’s from.

The No. 2 Middleweight contender has a career record of 24-24, with 16 wins coming by knockout.

A marathon of high-stakes MMA, a mega-watt boxing clash, along with pro wrestling’s singular greatest in-ring gala going off ...