In an interview with Men’s Health, Bjornsson talks about his sparring session with McGregor, before his victory against Jose Aldo. He says he had to be careful not to injure McGregor.
I was in Ireland shooting for Game of Thrones and my friend [Icelandic UFC fighter] Gunnar Nelson was training in Dublin with Conor. I asked if I could check out a session. I knew he had a big fight coming up, so I was gentle with him.
We squared off as if we were gonna do it. Then all of a sudden, he’s bouncing and I’m bouncing. Next thing you know, we’re having a full, bareknuckle body shot fight.