Judo black belt and Russian president Vladimir Putin is expected to use his visit to London today to take a seat in the Olympic stands to watch the martial art.
However simply observing the sport is not good enough for London's mayor Boris Johnson, who has said he would like to see the Russian strongman take part.
"It's very good to see president Putin, in the sense I hope very much we will be able to do plenty of deals with Russia," Boris said.
"I hope he will take part, isn't he a dab hand? I think that's what people want to see - stripped to the waist.
And having taken part in some zip-wire acrobatics himself yesterday, Boris added: "We want the politicians' olympics, thats what we want."
And specially for Boris, here is the president stripped to the waist (and being a hardcore black belt), as requested.