Sydney, The Gulf Observer: Jessica Pegula’s rout of world No. 1 Iga Swiatek at the United Cup in Sydney on Friday has placed the U.S in a dominant position to progress to the final of the mixed teams event.

The American defeated Swiatek 6-2, 6-2, leaving the world’s top-ranked woman sobbing afterwards as she struggled to cope with the magnitude of what was a rare defeat over the past 12 months, reports AP.

Frances Tiafoe later gave the U.S. a 2-0 lead over Poland in the first semi final by defeating Kacper Zuk 6-3, 6-3 in a convincing display at Ken Rosewall Arena.

U.S takes 2-0 lead over Poland at United Cup semis

Taylor Fritz can clinch a spot in the final for the U.S. when he plays world No. 10 Hubert Hurkacz in the third singles to open play Saturday.Swiatek had won all four of clashes against Pegula last year and was considered a dominant favorite for the Australian Open beginning on Jan. 16.

But the assertive play of Pegula, who adopted an aggressive position when returning Swiatek’s serve, reaped rich rewards for the world No. 3 in what proved a mismatch.The 28-year-old, who reached quarter-finals in three Grand Slam tournaments last year, said she benefited from her familiarity with Ken Rosewall Arena and the swiftness of the court.

The U.S. was based in Sydney during the group stages of the inaugural tournament, while the Swiatek-led Poland progressed from the Brisbane section of the 18-nation event.