Caption competition: What are David Cameron and Boris Johnson thinking?

Yowch. Check out this pair of wincers at Sunday's Wimbledon men's final . What exactly David Cameron and Boris Johnson have just seen here isn't clear, but at a guess we'd say it's probably the moment Murray tried to pull off a backwards roll for no clear reason and ended up sprawled on the floor like a drunken dad who has gatecrashed a pilates class. What do you reckon they're thinking behind the grimaces? Post your suggestions below.