The WWN Championship had an inaugural champion of which former mixed martial artist?
Matthew Fredrick "Matt" Riddle
Title: WWN Championship
Passage: The WWN Championship is a professional wrestling championship promoted by the WWNLive governing body.  The inaugural champion was crowned on April 1, 2017, when Matt Riddle defeated five other men for the title.
Title: Matthew Riddle
Passage: Matthew Fredrick "Matt" Riddle (born January 14, 1986) is an American professional wrestler and former mixed martial artist.  A professional MMA competitor since 2008, Riddle made a name for himself by appearing on SpikeTV's "The Ultimate Fighter 7", and went on to go on a four-fight win streak in the UFC before he was fired after testing positive for marijuana in February 2013.  In 2014, Riddle began training for a career in professional wrestling, and made his debut in February 2015.  In 2016, readers of the "Wrestling Observer Newsletter" recognized him as the wrestling Rookie of the Year and the Most Improved wrestler of the year.
Title: Sean Sherk
Passage: Sean Keith Sherk (born August 5, 1973) is a retired American mixed martial artist and former UFC Lightweight Champion.  Sherk competed in the Ultimate Fighting Championship and was one of the first combatants to have been a championship competitor in multiple weight divisions (having also competed for the UFC Welterweight Championship).  He was the second UFC Lightweight Champion in the organization's history after Jens Pulver vacated his title 5 years earlier.  Sherk also spent time competing in the Japan-based organizations, PRIDE Fighting Championships and Pancrase; going undefeated in both promotions.  He holds one of the longest undefeated streaks in mixed martial arts history, with only four career losses, all to fellow-UFC Champions.  Sherk announced his official retirement from mixed martial arts competition in September 2013 having last fought three years prior.
WWN Championship Matthew Riddle