Two-time Wimbledon winner Kvitova produced more winners in the match (28-23) but also committed more unforced errors (31-20) than her younger opponent.
Argentina has been one of the worst-affected countries by the virus with more than 856,000 positive cases and over 22,700 fatalities.
"It is true that the altitude is difficult. It can be suffocating. But what is really important is the flight of the ball and how that changes."
"Now I value my health a lot more, because it is horrible being stopped for so long and you really suffer," explained the 24-year-old, who is now looking forward to the new campaign.
Schweinsteiger is warning that the road to the 2021 Euro isn't on the right track after all the experimenting in the 20 games when 40 players have been tested.
Now, every Wednesday afternoon, Liu goes to the local special education school to teach children with cerebral palsy.
Cao Junwei's 10 points in the first quarter provided Shandong with a 21-19 advantage, but Beijing rode on a 13-0 spurt through Tang and Dong Jingxian's combined efforts to go up 51-36 at half-time.
After a goalless 120 minutes, Rodak became the hero of the match when he saved Alan Browne's penalty, and when teammate Matt Doherty hit the crossbar Slovakia were through.
"Now is an opportune time for me to cement my place. I always say that it's important to feel the responsibility of playing for the national team but that shouldn't be overshadowed by pride. Otherwise the burden can become too much.
Israel scored in the 56th minute with an impressive shot by PSV Eindhoven's striker Eran Zahavi.
Kvitova arrived for the match against the world No. 66 Siegemund as statistically the best server of this year's French Open remaining women's players, both in terms of ace struck and percentage of service games won.