Sam Stosur and Zhang Shuai won their second Grand Slam women's doubles title together and denied Coco Gauff and Caty McNally their first with a 6-3, 3-6, 6-3 victory. The No. 14 seeds added the US Open title to the Australian Open they won in 2019. Gauff and McNally, seeded 11th, were hoping to join 18-year-old singles champion Emma Raducanu as teenage titlists at the US Open. But the veterans were a little too good, with Stosur adding this doubles title to the one she won in Flushing Meadows in 2005, and the US Open singles title she earned by beating Serena Williams in 2011. Immediately after the final point, Gauff showed uncharacteristic frustration on the court, tossing her racket on the floor once, and then smashing it harder a second time. The racket appeared to land very close to a kid who was watching courtside. She motioned an apology, handing the racket to him after that. When asked about her reaction during the post-match news...