Jannik Sinner, Coco Gauff, and more of the world's top tennis players are squaring off in New York for a major title in the fourth and final Grand Slam of the year. The Onion examines the key facts and figures behind the U.S. Open. 29: Ball boys worn through in the average match 1.5: Hours [...]The post The U.S. Open By The Numbers appeared first on The Onion.