石井慧
From June 2013 to April 2014, Monson would go 1–6 in seven fights, defeating Denis Komkin, and losing to notable fighters such as Alexey Oleynik, Satoshi Ishii, and Mike Hayes. After a loss to up-and-comer Chaban Ka, Monson defeated Kevin Brooks via north-south choke at Fight Time 20 on August 29, 2014.