Inter Milan midfielder Barella headed home in first-half stoppage time after receiving a long pass from Ciro Immobile, with the goal enough for Italy to clinch three points in Amsterdam.
In March, the Confederation of African Football (CAF) postponed the 2021 AFCON qualifying matches due to the COVID-19 pandemic.
She will take on 15th-seeded Maria Sakkari of Greece in the last 16, who stunned Williams at the Western & Southern Open last month.
"This is my duty to know my team's weaknesses since I don't want to waste my time," the Croat added.
As the match seemed headed for a goalless draw in the second half, Shijiazhuang broke the deadlock in the 88th minute with a cross from Brazilian forward Matheus Leite Nascimento, helping midfielder Chen Pu to score an open goal.
In other matches on Friday, Tijuana secured a 2-1 home win over Monterrey and Santos Laguna drew 1-1 at Juarez. Enditem
Spain responded with a big chance at the other end of the pitch as a misplaced return pass from Emre Can to goalkeeper Kevin Trapp allowed Rodrigo Moreno to intercept the loose ball. However, Trapp denied Moreno after blocking the shot in the nick of time in the 14th minute.
"You can feel it in your body when you have a good throw, mostly you feel the whole energy behind it, from the right toe to the chest to the hands. In the javelin you need your whole body. But it's really hard to explain - you feel it for less than one second. But then you realize that it was a huge throw," he explained.
Yellow jersey holder Yates survived several attacks to finish in a group containing many of the title favorites, which also helped him secure his leading place in the title race.
"I find it completely unacceptable that we learn from the press that one of our players is positive," he said to RMC, "They released a statement and sent the player home but no one from the Federation has communicated this to us. No one has contacted us." Enditem
From December this year, test events will be held ahead of the 2022 Beijing Winter Olympic Games.