Luis Enrique's team left it late and flabbergasted the hosts when Moreno flicked on a cross before Gaya poked home with a turn shot from very close range in the closing seconds of injury-time.
Pepe has made 99 appearances for Gremio and scored 21 goals since making his professional debut in 2017.
"It was a very good performance from my side. I managed to read his serve well," Djokovic said. "I found my way, especially after the first set. The second and third sets were a really great feeling on the court."
Ruichang took the first point with a straight win in the women's doubles, before Zhejiang fought back and took the victories in the men's singles and men's doubles. Then He Bingjiao overcame a one-set deficit to beat Han Qianxi in the women's singles, helping Ruichang to tie the game 2-2.
In a statement, Fluminense did not disclose details of the move nor the name of the 20-year-old's new club, though widespread media reports in Brazil and Portugal said he had signed with Porto.
The Bundesliga is also going to intensify its efforts to support football development in China.
In the 48th minute, the Venezuelan striker assisted Swedish winger Sam Larsson to stretch the lead for Dalian.
Djokovic's exit means there will be a first-time Grand Slam champion in the men's draw.
"We are already working hard to achieve our goal of going to Qatar. It's a challenge that affects all of Ecuador. We know it's not going to be easy and we're focused on giving everything we've got."
Speaking at the Olympic city development forum, Dubi praised the preparations of Beijing 2022 during the current global crisis.
After consultation with the International Paralympic Committee (IPC), Beijing 2022 redrew and recolored its Paralympics emblem "Flying High" to keep in line with the new Paralympic symbol "Agitos", and the words "PARALYMPIC GAMES" were removed from the original design.