"We played well in the first half and created many chances, but we had difficulty after conceding the first goal," SIPG coach Vitor Pereira said.
The Bayern defender refers to the fact that most of Germany's new faces have known each other for many years, having played in the same club or Germany's youth teams.
Madrid claimed last season's title with an impressive run of results in the last 11 games of the season and with coach Zidane Zidane's options improved by returning loanees Martin Odegaard and Alvaro Odriozola (and perhaps Sergio Reguilon), he maintains a balanced squad, despite the likely departure of Gareth Bale and James Rodriguez's move to England, neither of whom contributed much to their title win.
Ruichang defeated Hunan Hualai 4-1 to continue sitting second, leaving their opponents in third place.
Elsewhere, sixth seed Matteo Berrettini of Italy, tenth seed Andrey Rublev of Russia and Australia's Alex De Minaur all won their third round matches. Enditem
Players will be tested "upon their arrival and will receive their accreditation as soon as the first negative test is returned," Forget said.
38-year-old Williams closed out the first set with ease but had trouble in the second when she was broken twice by Gasparyan.
"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.
Simiyu takes over from New Zealand national Paul Feeney who left the post in April citing concerns over the COVID-19 pandemic.
Chelsea finished fourth in last season's Premier League and reached the final of the FA Cup where they lost to Arsenal.
Kosgei was later disqualified for stepping onto the infield in the closing stages.