A year younger than 24-year-old Folau, Tomane attended Marsden High School in Brisbane with the Wallabies' great new hope and they both played the 13-a-side version of the sport for the Melbourne Storm in the NRL.
Folau rocked the Lions - and the watching world - by claiming a brace of stunning scores on his Test debut last weekend but Tomane says he wasn't in the slightest bit surprised by the nature of Waratahs star's showing at the Suncorp Satadium.
"Oh man! He's a freak. But I kind of knew that was going to happen," Tomane said of Folau's introduction to rugby union's biggest stage.
"Watching him play from a young age and just thinking this guy is going to be massive once he finishes high school, and that's exactly what happened.
"He was a year older than me. I didn't play much at rugby at school, I played club rugby growing up, but I think we had a couple of league games together before I left.
"He left high school, went to Melbourne and became the youngest player to play league for Australia. He's won origins, he's won Grand Finals. He's played AFL, which is hard in itself, and he's done really well in rugby."
Tomane now has the chance to show he can do just as well as Folau after he was called up to replace Digby Ioane in the tomorrow's must-win match up.
And fellow Brumby Christian Lealiifano is convinced Tomane will make a positive impression given his similarities to his former school mate.
"Joe's quite a big winger, he's very fast and he's had some experiences in league," added Lealiifano, who was passed fit to start at inside centre despite being stretchered off with a head knock last week.
"Similarly to Israel, he's a very strong ball carrier and he's very good on his feet as well, which we will hopefully get some benefit from.
"He's a great bloke off the field, he's very religious and close with his family and close to God. I couldn't ask for a better bloke to run alongside on Saturday."