Kenichi Oya (大矢健一) is a semi-retired Japanese professional wrestler, better known by his ring name Hisakatsu Oya (大矢剛功). Although he started out for New Japan Pro-Wrestling, he is well known for his stint in Frontier Martial-Arts Wrestling.
Oya in 2015
Kensuke Sasaki is a Japanese retired professional wrestler, mixed martial artist, and founder of the now-defunct wrestling promotion Diamond Ring.
Sasaki as GHC Heavyweight Champion in 2008