Coco Gauff reached the third round of the China Open by beating Clara Burel in her first match since the U.S. Open.

Carlos Alcaraz and Daniil Medvedev both won in straight sets to launch their China Open title bids on Friday while 595th-ranked Zhang Shuai pulled off a big shock in the women's draw.

Carlos Alcaraz fumed at the umpire at the China Open in his opening match against Giovanni Mpetshi Perricard. The French Open and Wimbledon champion claimed victory over the Frenchman on Friday - but not everything went his way.