"The pandemic really has affected us tremendously. But I have not wasted my time. Instead, I kept improving my techniques. I was ready for this competition," he added.
In another friendly match, Senegal will face Mauritania at Lat-Dior Stadium of Thies, 70 km east of Dakar.
The six-time US Open champion will next face compatriot and 2017 champion Sloane Stephens.
It was announced here on Thursday that Iran's national football team will play Uzbekistan and Tajikistan in friendly matches in October.
Banka said his focus is "absolutely" on the welfare of athletes, and that the anti-doping system that "has served clean athletes" must be protected.
The 22-year-old netted again on the stroke of half-time with a powerful left-footed finish after Hyoran Kaue's assist.
Williams will take on Bulgaria's Tsvetana Pironkova, who overcame Alize Cornet of France 6-4, 6-7 (5), 6-3 in another round of 16 match.
WASHINGTON, Sept. 3 (Xinhua) -- Dominic Thiem of Austria made it a 27th birthday to remember on Thursday when the second seed completed a comprehensive 6-3, 6-3, 6-2 US Open second round victory over India's Sumit Nagal.
But after that goal, Poland took control of the game for the rest of the first half, and their domination paid off when Kamil Glik equalized just before half-time.
"Now the games are less, for me the time for the preparation is not the best, I had only two weeks,"
"It's a very difficult competition as you can see. We followed the coach's guidance to keep the clean sheet. The draw is acceptable for us," said Shenhua midfielder Zhu Baojie.