perhaps he saw Harry Redknapp's wife. She must be some looker if Jamie Redknapp is Harry's son, those clean-cut looks of Jamie's must have come from somewhere!
I think it was not what he has seen, but what has happened behind him. I believe a fan ran on to congratulate Harry, and a steward made chase. In the chase, the walkie talkie carrying steward slipped and in a frantic effort to correct his balance he has started to wave both his hands around vigorously. I think you can guess the rest....