What are some boxers who were train or competed in other forms of combat? Here are some I can think of: Carl Thompson - Had six Pro Muay Thai fights, here is some footage of his first fight with Branko Cikatic: Dillian Whyte - Started in Muay Thai and dabbled in MMA: Jarell Miller - 22-2 record in Kickboxing: James Warring - 2-1 in MMA, 0-1 in Pro Kickboxing and had a victory over Vitali Klitschko in amateur Kickboxing: This content is protected This content is protected This content is protected Veeraphol Sahaprom - Three weight Muay Thai Champion: This content is protected Sagat Petchyindee - 266-40-11 (151 KO) Muay Thai record, fought Wilfredo Gomez: This content is protected Saensak Muangsurin - Muay Thai Champion and went onto win the WBC Light Welterweight Championship in just his third Pro Boxing Match: This content is protected This content is protected This content is protected