With his own Nike pop-up at Kith SoHo and a Times Square billboard, the winner of 19 Grand Slam titles made a splashy entrance into the U.S. Open – not to mention his envy-stirring footwear at Arthur Ashe Kids Day.

Writer: Carly Terwilliger The U.S. Open kicked off in New York last week, and already there was plenty of drama. Most notably for the competition, three-time Grand Slam champion Andy Murray pulled out of the tournament due to a hip injury that has been bothering him since Wimbledon. And before even playing in his first match, tennis great Roger Federer managed to stir up some sneaker buzz while preparing to go for his 20th Grand Slam in Flushing.