When streaker Mark Roberts tumbled across an outside court where Anna Kournikova was playing a doubles match, he had a slogan written on his chest: "Only the balls bounce," a play on Kournikova's giant poster campaign for a sports bra whose slogan was "Only the balls should bounce." Roberts arrived at Wimbledon dressed in only a top and specially designed tracksuit bottoms held intact with velcro. He used a mirror in one of the public toilets to scrawl the lettering on his chest before queueing for six hours to get into Kournikova's court.