Jiangsu sealed the win just three minutes later as Xie Pengfei converted a free kick and into the box and the ball hit at his teammate Li Ang, which created a rebound for Martins to score a volley.
"This is an exceptional situation," club lawyer Rodrigo Dunshee said in a video posted on Flamengo's Twitter account. "It is very important to end this at the root. The correct measure is to delay this game."
The Celta captain opened the scoring after receiving a pass from Nolito after 15 minutes in an entertaining match which saw Celta play some impressive football.
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.
The match will be played at Defensores del Chaco stadium in Asuncion on October 8, kicking off at 7:30pm local time, the entity said in a statement on its official website.
The London club said their medical team was informed of the test results as the team was at London Stadium preparing for their Tuesday evening's EFL Cup third-round match against Hull City.
"2021 is a landmark year for the sport and we remain committed to offering our fans, both old and new, the opportunity to watch world-class table tennis that is refreshed, re-energized and redefined," said Stephen Duckitt, WTT Event Strategy Director.
"These are strange moments, and it is difficult to accept, but you have to accept it," he insisted.
The 21-year-old replaces Manchester City striker Gabriel Jesus, who has been ruled out of the fixtures with a calf injury.
According to Italian media outlets, Vidal has signed a two-year contract with the Nerazzurri including an option for a third year. Enditem
"We gave up our own advantage in tactics, only to let Jiangsu play its way comfortably," said Shanghai head coach Wang Zhiteng.