"Serena is Serena," Sakkari said after advancing earlier Saturday by beating 19-year-old American Amanda Anisimova 6-3, 6-1. "You have to come up with some great tennis. Otherwise there is no chance against her."
"A second test will be carried out within 72 hours and then another every five days as long as they remain in the tournament," he added.
The ITTF is closely cooperating with CTTA to ensure safety measures are in place to protect athletes, coaches, officials and supporting staff within the competition "bubble." Enditem
It was a tough day for all cyclists as the mountainous stage 8, a 141km ride to Loudenvielle, featured three challenging ascents which scattered the peloton.
The four-day competition, including dressage, jumping, endurance race, speed race and others, attracted more than 300 professional riders from across China.
Slovenia's Roglic arrived with the leading group to remain 21 seconds ahead of defending champion Egan Bernal on the overall standings.
Other high-profile South Americans playing in the Chinese Super League include Brazilians Oscar (Shanghai SIPG), Hulk (Shanghai SIPG), Renato Augusto (Beijing Guoan) and Paulinho (Guangzhou Evergrande), as well as Venezuela international striker Salomon Rondon (Dalian Pro). Enditem
MADRID, Sept. 4 (Xinhua) -- Lionel Messi confirmed on Friday that he would stay at FC Barcelona this season to see out his four-year contract signed in 2017.
English Premier League announces the termination of cooperation with Chinese broadcaster PP Sports.
BEIJING, Sept. 6 (Xinhua) -- The updated emblem for the Beijing 2022 Paralympic Winter Games was released on Saturday to match the new Paralympic symbol that was refreshed in October 2019.
"They feel that what is happening with the U.S. Government could create a negative precedent internationally that could be replicated and would jeopardize the entire global anti-doping system."