The US Open Tennis Championship is always the best time of the year. From iconic moments such as Roger Federer's five consecutive title wins and Serena Williams' six titles to the legendary Honey Deuce, the US Open Championship is a classic. In recent years, fashion has played a huge role in this famous event. There's something about tennis players revealing their on-court outfits as they're making their way out of the tunnel that brings anticipation to fans.