James, 29, has also sparkled in his first two matches in the Premier League following his move from Real Madrid.
Currently, it seems doubtful if the support can help Wagner to get things back to place.
Real Madrid controlled most of the ball in its league debut away to Real Sociedad a week ago, but failed to create enough chances to win the game, raising questions about what was also the club's main problem last season.
Viera bagged his second with a stunning free kick in the 56th minute, before Cedric Bakambu added the fifth in the 85th minute.
However, Xu and Diao Linyu collided during the beginning of the third set but neither was injured. Shanghai then accumulated a seven-point lead from deftly placed shots and took the set.
Yunnan seemed defenseless toward Jiangsu's four national members lined-up in the first set, but Jiangsu suddenly lost steam in the second, gifting Yunnan a 5-3 lead from two severing faults.
The organizers also highlighted that reviews will take place after each test event, which would help formulate better working and contingency plans amid the pandemic.
In Mainz, Hungary captain Szalai is said to have raised the issue of deferred payments the players were promised when they waived their salaries during lockdown with the club's board on behalf of the team.
It looked as if it was going to be a stroll for Liverpool, who were in total control and brought Thiago Alcantara on for his debut. The new signing from Bayern Munich was then guilty of a needless foul on Timo Werner to give Jorginho the chance to level from the spot, only for Allisson to save his tame spot kick.
Pirlo replaced Maurizio Sarri to become the head coach of Juve's senior squad in August, just 10 days after the maestro took charge of the U-23 team.
Qingdao went one player down eight minutes after the break as Yin Yaji collected his second yellow card.