Serena cruises by Muchova into fourth round

Serena Williams moved another step closer to a record-tying 24th career Grand Slam title with a comfortable 6-3 6-2 victory over Czech Karolina Muchova on Friday to reach the last 16 at the U.S. Open.

Energized De Minaur sees off Nishikori in New York

Alex de Minaur reached the second week of a Grand Slam for the first time after he produced an inspired performance to upset seventh seed Kei Nishikori 6-2 6-4 2-6 6-3 in the U.S. Open third round on Friday.