Who’s Number One: Gordon Ryan vs Matheus Diniz could be the greatest no-gi grappling card of all time. What makes it so exciting, in part, is how unpredictable it is. How will Matheus Diniz handle the biggest challenge of his career? What can Gordon Ryan do to submit Matheus? How does the matchup between Craig Jones and Roberto Jimenez play out? What can Elisabeth Clay do to Gabi Garcia?