US Open win persuades Iga Swiatek the ‘sky is the limit’ for tennis career

Iga Swiatek kisses the US Open trophy (Charles Krupa/AP)

Winning the US Open has persuaded Iga Swiatek that the “sky is the limit” for her tennis career.

The 21-year-old Pole has a huge lead in the world rankings but this was definitive proof that she is the best in the business on hard courts as well as clay.