Coco Gauff beats former No. 1 Naomi Osaka in straight sets


              Naomi Osaka, of Japan, reaches for a shot from Coco Gauff, of the United States, at the Mubadala Silicon Valley Classic tennis tournament in San Jose, Calif., Thursday, Aug. 4, 2022. (AP Photo/Godofredo A. Vásquez)
            
              Coco Gauff, of the United States, tosses the wldball for a serve to Naomi Osaka, of Japan, at the Mubadala Silicon Valley Classic tennis tournament in San Jose, Calif., Thursday, Aug. 4, 2022. (AP Photo/Godofredo A. Vásquez)
            
              Naomi Osaka, of Japan, reacts after winning a game against Coco Gauff, of the United States, at the Mubadala Silicon Valley Classic tennis tournament in San Jose, Calif., Thursday, Aug. 4, 2022. (AP Photo/Godofredo A. V·squez)
            
              Naomi Osaka, of Japan, prepares to hit a return to Coco Gauff, of the United States, at the Mubadala Silicon Valley Classic tennis tournament in San Jose, Calif., Thursday, Aug. 4, 2022. (AP Photo/Godofredo A. Vásquez)
            
              Coco Gauff, of the United States, prepares to hit a return to Naomi Osaka, of Japan, at the Mubadala Silicon Valley Classic tennis tournament in San Jose, Calif., Thursday, Aug. 4, 2022. (AP Photo/Godofredo A. Vásquez)
            
              Naomi Osaka, of Japan, follows through on a return to Coco Gauff, of the United States, at the Mubadala Silicon Valley Classic tennis tournament Thursday, Aug. 4, 2022, in San Jose, Calif. (Santiago Mejia/San Francisco Chronicle via AP)
            
              Coco Gauff, of the United States, serves to Naomi Osaka, of Japan, at the Mubadala Silicon Valley Classic tennis tournament in San Jose, Calif., Thursday, Aug. 4, 2022. (AP Photo/Godofredo A. Vásquez)
            
              Coco Gauff, of the United States, celebrates her 6-4, 6-4 victory against Naomi Osaka, of Japan, at the Mubadala Silicon Valley Classic tennis tournament in San Jose, Calif., Thursday, Aug. 4, 2022. (AP Photo/Godofredo A. Vásquez)
            
              Coco Gauff, left, of the United States, and Naomi Osaka, of Japan, meet at the net after Gauff's win at the Mubadala Silicon Valley Classic tennis tournament Thursday, Aug. 4, 2022, in San Jose, Calif. (Santiago Mejia/San Francisco Chronicle via AP)
            
              Naomi Osaka, of Japan, hits a return to Coco Gauff, of the United States, at the Mubadala Silicon Valley Classic tennis tournament in San Jose, Calif., Thursday, Aug. 4, 2022. (AP Photo/Godofredo A. Vásquez)
            
              Coco Gauff, of the United States, hits a return to Naomi Osaka, of Japan, at the Mubadala Silicon Valley Classic tennis tournament in San Jose, Calif., Thursday, Aug. 4, 2022. (AP Photo/Godofredo A. Vásquez)
Coco Gauff beats former No. 1 Naomi Osaka in straight sets