The 18-year-old Chang defeated Irish teenager Aaron Hill 4-2 in the first round.
Firmino doubled the hosts' lead by sliding home from close range after being fed by Atletico Madrid left-back Renan Lodi.
"I don't know what is going on, I'm so happy," said Swiatek in a smile.
"I still have a lot to improve, to learn, to grow," Valverde told reporters in a virtual press conference on Friday. "Compared to previous years, I feel much better now, more conditioned on a footballing and personal level. But I'm very young and I have a lot to learn."
The former Bayern performer claims the team needs to count on a reliable strategy.
Chen Meng (L) of Shandong and Wang Manyu of Heilongjiang react during the women's doubles final match against Sun Yingsha of Hebei and Wang Yidi of Liaoning at the 2020 Chinese National Table Tennis Championships in Weihai, east China's Shandong Province, Oct. 10, 2020. (Xinhua/Zhu Zheng)
Messi scored the only goal of the match by converting a first-half penalty as the Albiceleste started their campaign with a gritty, if not entirely convincing, home victory at La Bombonera.
"I'm aiming to achieve many things this year at both a personal and collective level," Coutinho told a virtual news conference on Saturday. "I can say that I returned to Spain with a lot of motivation. My desire to work and make things happen in my favor has tripled."
The 30-year-old former professional footballer is now a teacher at Xi'an Sports Collage, a freestyle footballer, and an internet celebrity who has around 230,000 followers on Douyin, a Chinese video sharing platform under Tiktok's parent company ByteDance.
The Japanese Prime Minister has said that holding the Olympics next year is "the top priority" of his government.
After Gong Li's 3-pointer, Jiangsu capped the second period with a 12-0 spurt to go 46-38 ahead at the break.