In the day's other match, South Korean striker Son Heung Min scored four goals as Tottenham produced a second half blitz to win 5-2 away to Southampton.
It was also foul play that facilitated the Eagles opening the scoring in the 27th minute, as Dedryck Boyata hacked down Andre Silva inside the box, with the Portuguese stepping up and converting the resultant penalty.
Flamengo went ahead in the sixth minute when Pedro slotted a cool finish past Argentinian goalkeeper Javier Burrai after a surging run and defence-splitting pass from Gerson.
Tokyo 2020 delivery officer Hidemasa Nakamura told reporters at a news conference that the ceremony was canceled as a countermeasure against the COVID-19.
Wolfsburg came close with 32 minutes played when Maximilian Arnold's corner kick struck the crossbar before John Anthony Brooks headed just over the target from a promising position two minutes later.
In Tuesday's match, Guoan was up by three goals before the interval, with goals from Yu Yang, Jonathan Viera and Fernando Lucas Martins.
‘The feeling I got when skiing was a kind of happiness which I hadn’t felt in a long time.’
Martinez is unlikely to make many changes to the side that beat Alaves on Sunday with Darwin Machis and Roberto Soldado leading the attack, while veteran striker Jorge Molina will also play a part at some point in the game.
Yu Jingyao from Beijing and world champion Fu Yuanhui had the same trouble as Yu.
China's national team player Gong Xiangyu notched up seven points to help Jiangsu take the first set.
Villarreal kicked off the season with a win and a draw, but strikers Gerard Moreno and former Barca frontman, Paco Alcacer have already shown they can trouble and defense in La Liga.