On Monday night, Iga Swiatek won the Cincinnati Open. On Tuesday, she played two U.S. Open doubles matches in New York City.

The forehand that grazed the sideline, the temple tap to her team, the sprint around the court. All of it pointed to a player in Iga Swiatek who is as composed as she is ruthless.

Iga Swiatek has confirmed her participation in today’s US Open mixed doubles event despite a rapid turnaround from her victory at the Cincinnati Open on Monday night. The Polish star, who won Wimbledon last month, did not drop a set all week in Cincinnati and defeated Jasmine Paolini 7-5 6-4 to lay down a marker ahead of the US Open.