Thorn, who will become the oldest player in a European Cup final, played for his Japanese club Fukuoka Sanix Blues only a fortnight after lifting the Webb Ellis Cup in Auckland seven months ago.
Not that his enthusiasm for the game is flagging.
"I just love my footie, I like being here, the challenge of it and being part of a Heineken Cup,'' he said.
"Yeah being in the Heineken Cup final is juicy, but basically there's a brick wall between us and the cup in Ulster.
"Wayne Bennett was my (Brisbane) Broncos coach and he always said the hardest thing is to get to the final, and what happens then will happen.
"But the hardest thing is getting there.
"I have been playing and training without a break now for 16 months - which is the most I've ever done in my career - so it is insane.''
Only two rugby players, Rod Kafer and Doug Howlett, have won a Super Rugby title and a European Cup.
Nobody has ever won a World Cup, Super Rugby title and a European Cup.
But who would dare bet against Thorn?
- AAP