We just spoke to Claudio Caluori who told us about this nuts RedBull 4x race. It's not something you would expect Prokop to be doing, what with him concentrating on BMX for the Olympics this year.

"Michal Prokop and I have raced at the Red Bull Crashed Ice in Quebec this weekend, against many pro hockey players. This was the most amazing event i've ever seen... 100 000 spectators, live tv coverage and balls to the wall 4x action on ice skates." Claudio Caluori.

This was last years video, check http://www.redbullcrashedice.com for the latest video.