In the 69th minute, the Shenzhen side got another scoring opportunity. However, Harold Preciado's close-range shot was saved by Shenhua goalkeeper Zeng Cheng, and then John Mary's follow-up header hit the woodwork once again.
"I was a little bit in shock," Carreno Busta said. "The rules are the rules. The referee and the supervisor did the right thing, but it's not easy to do it."
The team was formed in 2015 by Gao Xiang, vice-principal of the Sports School of Jingyuan county.
Earlier, Gabriel Barbosa came off the bench to fire defending champions Flamengo to a 2-1 home victory over Fortaleza.
Pepe has made 99 appearances for Gremio and scored 21 goals since making his professional debut in 2017.
Players will be tested "upon their arrival and will receive their accreditation as soon as the first negative test is returned," Forget said.
Both sides had chances to break the deadlock in the first half but missed them all. Shanghai Shenhua midfielder Cao Yunding's left-footed shot hit the post in the seventh minute. Shenzhen almost scored the opener in the last minutes going into the halftime break when Ole Selnaes' free kick was also denied by the crossbar.
In Thursday's only other match, Sport Recife won 2-1 at Gremio thanks to goals either side of half-time from Patric Cabral and Iago Maidana. Pepe pegged a late goal back for the hosts. Enditem
"This team has some of the best midfielders in the world and I know that I can learn from them and also bring my own strength to the group. Having spoken to the manager about his vision for this team, the direction that the club is going in is hugely exciting and I cannot wait to be a part of that," explained Van de Beek, who will wear the No. 34 shirt in memory of former teammate Abdelhak Nouri.
Third seed and last year's runner-up Daniil Medvedev of Russia and sixth seed Matteo Berrettini of Italy also made it to the third round.
Djokovic's exit means there will be a first-time Grand Slam champion in the men's draw.