"A match like today, I just feel like Pironkova was serving well, she was hitting winners everywhere," Williams said. "Maybe I wasn't being aggressive enough. So I think it's more or less me adjusting my game in the second set and coming back and just trying to do better."
Real Sociedad are another side affected by COVID-19 in the run into the new campaign, with striker Willian Jose testing positive on Wednesday to become the third player at the club, (along with new signing, David Silva and Spain international Mikel Oyarzabal) to be affected by the virus. Adnan Januzaj will also miss out through injury leaving Alexander Isak to lead the visitors' attack, which for the moment looks weaker than last season.
Nathan Ake has been brought in to give more options at the back, but Guardiola's plans have been somewhat frustrated by new Spain international Eric Garcia's refusal to sign a new contract, and he could be Barcelona bound, while John Stones and Nicolas Otamendi are not reliable enough over a long season.
Alves almost added his second in the 61st minute, but his powerful shot was denied by the crossbar.
"Concrete pouring must be done all at once, so it's common for us to work continuously for more than 10 hours. In order to catch up the schedule, we have to fight!" he said with a smile.
The 30-year-old Taylor, who produced a world-leading mark of 17.46 meters to win in Ostrava on Tuesday, failed to find his best form this time, as he only managed a best of 16.53m with his final effort of the night.
In a showdown between two clinical power-hitters, Osaka and Brady split the opening two sets, with Osaka claiming the tiebreak in the first and Brady taking the sole breaking chance in the second.
Serie A teams are expected to consider the competing bids and to make a decision by the end of the month.
Zhejiang then leveled again by a straight-set win in the women's singles, before Zheng Siwei/Huang Dongping took the decisive point for Qingdao after sweeping Dong Weijie/Lv Rouhao in just 15 minutes.
Cano restored Vasco's lead by tapping in from close range after his first attempt with a header was parried back into his path by goalkeeper Diego Cavalieri.
He returned to Fortaleza almost immediately, leading the side to ninth in the 20-team Serie A standings in 2019. They are 10th in the current table, only eight points behind leaders Internacional, more than a quarter of the way through the season.