The platform 'Mes que una mocio (More than a motion)', formed by a group of Barcelona club members, confirmed they had collected 20,731 signatures, comfortably clearing the required 16,520 to trigger the vote.
Zhao's compatriots Lu Ning and Xu Si both competed in the other group on Thursday as David Gilbert edged them out with an advantage of the break.
Serginho then turned from hero to villain when he received a second yellow card for scything down Carlos Eduardo two minutes from time.
The squad also includes Real Madrid midfielder Federico Valverde, Juventus midfielder Rodrigo Bentancur and Inter Milan defender Diego Godin.
Internacional lead Group E, three points ahead of second-placed Gremio, who lost 2-0 at Universidad Catolica in Chilean capital Santiago.
"I have made the most difficult decision of my sports career. I will close this chapter in this wonderful football club where I have grown as a player for seven years... Triumphs, joys and also hard times but what I am most proud of is that I arrived in Munich as a young man full of dreams and now I will leave completely fulfilled with the club, a history and a culture," he commented. Enditem
Coach Ronald Koeman had told the player, who turned 21 a month ago, that he didn't want him this season. Speaking after the game, which Barca won thanks to a solitary Antoine Griezmann goal, Koeman implied that the youngster would indeed be on his way out.
With Li Shenglong's header in the 75th minute, Shanghai SIPG beat Chongqing Lifan 3-2.
Fresh from his early goal, Salah looked in fine form, and added his second and Liverpool's third when he crashed an unstoppable half-volley past Illan Meslier in the Leeds goal to make it 3-2 to the champions at half-time.
With the domestic 2020/2021 campaign set to start on this Friday evening, none of the 17 challengers seems to have found a convincing answer yet.
Tottenham Hotspur began their season with a defeat, going down 1-0 at home to a James Rodriguez-inspired Everton.