Rizin FF has set its 2018 schedule, and the first event of the year features some big-show vets. In the headliner of the season opener, Rizin FF 9, former UFC flyweight contenders Kyoji Horiguchi (23-2) and Ian McCall (13-6-1) face off in a 134-pound bout. Rizin FF 9 takes place May 6 at Marine Messe Fukuoka in Fukuoka, Japan, and the card streams in North America on rizinff.com.