It looked like Bayern was on the way to an easy victory but Hertha Berlin turned up the intensity and halved the deficit only seven minutes later when Cordoba headed home Matheus Cunha's free kick.
"Scoring goals gives us confidence. It is a great victory," said PSG head coach Thomas Tuchel.
National team manager Oliver Bierhoff said the association depends on internationals' turnovers and will start a charm offensive to regain fans' trust.
"But I take it as a very positive thing. I am playing quite well to win against a player like Stefano today with this score.
Peru head coach Ricardo Gareca has insisted he won't use the team's weakened squad as an excuse for any poor performances.
The South American zone 2022 World Cup qualifiers were scheduled to begin in late March before being suspended because of the global health crisis.
After the break, Union continued on the front foot and got their reward in the 49th minute when Marcus Ingvartsen had all the time and space at the edge of the box to slot home past Zentner into the far corner.
Yang, Li Yueru and Li Yuan combined for 12 points, while Guo Zixuan made Hebei's only basket during the span.
"We've had an unbelievable group of players over the last two seasons and a squad of great people. I will miss them all hugely...I'd also like to say a massive thanks to the club for considering mine and my family's future and allowing me to make this move."
As expected, there was no place for striker Edinson Cavani, who has yet to find a new club after leaving Paris Saint-Germain in June. The 33-year-old has not played since March.
Baum's face spoke volumes after losing his first game as the successor to sacked manager David Wagner 4-0 against RB Leipzig.