Roy isn’t just an accomplished UFC fighter in his own right — but spent some quality time with JCVD on the set of the upcoming “Kickboxer: Vengeance” flick.
And with Van Damme recently lecturing UFC fighters about how weak their leg strikes have become — we had to ask Roy if he thinks JC could back up his tough talk.
For the record, Van Damme is an accomplished martial artist — who won several fights as a teenager before becoming an action star.
There’s more … we also asked Roy how he’d fare in a showdown with Hafthor Bjornsson — the MASSIVE guy who plays The Mountain on “Game of Thrones.”
The 400-pound Bjornsson famously had a sparring session against Conor McGregor — but Nelson says he’d get CRUSHED against someone his own size.