The first time Anaru Grant stepped onto a jiu jitsu mat, he felt pretty confident.
With a semi-professional rugby league career and upwards of 100kg of weight behind him, he was eyeing up his 70kg opponent with excitement.
He learned a tough lesson that day.
"I went to my first class and didn't really get the vibe that it was going to be as effective as it was. Once we got into sparring I found out pretty quickly that it's a lot tougher than it looks.
"This guy was probably 70kg and I was 100kg-plus at the time but I