"The finish was impressive, playing with nine against 11. We showed an incredible mentality. It was a deserved victory after a crazy match. I am very proud," the German coach said.
Marco Rose's men threw everyone up front but got caught flat-footed following a corner, as Sancho had a lot of green ahead and teed up for Haaland, who put the result beyond doubt after wrapping up his brace in the 78th minute.
The Changchun team went ahead in the ninth minute with a header from Tan Long.
Ireland's Sam Bennett won the last stage after the eight-lap dash around the iconic Champs-Elysees to take the green sprinter's jersey.
The third goal took the wind out of Mainz' sails as Zentner had his hands full of work. Dani Olmo should have made it 4-1 but Zentner denied him at the hour mark.
"It's an agreement by our clubs and investors. We are expecting to help them get reasonable control of the spending. Besides that, all of us want a more balanced league. Under the cap, the teams are encouraged to pay more attention to their youth training system instead of buying players."
Hoffenheim's wastefulness was punished moments later after Jan Thielmann's long ball into the box found new arrival Sebastian Andersson, who headed home the equalizer against the run of play.
Despite the lack of any games for nearly six months due to the COVID-19 pandemic, Iran has been moved three places up to be positioned 30th by the FIFA.
Bayern chairman Karl-Heinz Rummenigge sees BVB as being the club's most dangerous rivals this season. "They have had a much longer break and preparation," the 64-year-old said.
The disciplinary commission of French Professional Football (LFP) on Wednesday announced the Brazilian striker would be banned for two games plus one suspended. Argentine midfielder Leandro Paredes received the same punishment while Layvin Kurzawa has to serve a six-match ban for kicking out at Marseille left-back Jordan Amavi.
Esteghlal parted company with Farhad Majidi at the end of Iran's super league season and reportedly has not reached an agreement with Italian coach Andrea Stramaccioni.