It’s not often that any tennis player can manage to upstage Serena Williams when it comes to fashion, but at Wimbledon Roger Federer did just that, provoking the kind of social media meltdown that is usually reserved for a cat suit on the court. The reverberations of his decision to trade his Nike swoosh for a Uniqlo red square reached all the way to the gilded rooms of the Paris couture. Ever since, much has been written about the money involved ($300 million); the length of the contract (10 years); and the other potential reasons for the change after more