Osaka continued her U.S. Open surge by beating Muchová, one of the great craftswomen in tennis, in a captivating match.

The two Grand Slam champions had a moment together at this tournament when they were very different people. Now they have a match to play.

In a battle of former US Open champions, No. 23 seed Naomi Osaka dispatched No. 3 seed in straight sets to advance to the quarterfinals.