It was a US Open in which youth and age were served as 19-year-old Coco Gauff became the first American teenager since Serena Williams in 1999 to win the women’s singles title, while Novak Djokovic became the oldest singles champion.
Read MoreCaption: Novak Djokovic broke many records on his way to his 24th Grand Slam win at the US Open Sunday, Sept. 10. Photograph by Pete Staples for the United States Tennis Association (USTA).