It was announced earlier this week that former UFC flyweight title challenger Kyoji Horiguchi was heading to Rizin FF as a free agent. Now we know his first opponent. Horiguchi (18-2) will meet Yuki Motoya (18-4) in his debut for the promotion on April 16 at Rizin’s event at Yokohama Arena in Yokohama, Japan, a major city south of Tokyo. The promotion announced the matchup today . News of the booking was first reported by MMAFighting.com