The win marks the first victory for DeChambeau at one of golf's major championships.
He admitted that he believed in his ability to still contribute to the club, but added that "it was the past," and he admitted he had "expected" Koeman to say he no longer wanted him, "because it had already been said before."
In the stoppage time, Zhang Yuning shot the ball into the net for Beijing, but the goal was disallowed due to offside after checking the VAR.
The pay-tv stations covering the game, Sky and DZAN, announced they would not be sending reporters to Budapest but instead would commentate on the game from Germany.
"I hope we will get some new arrivals. We've still got time to fix everything, and things are in progress," Mueller added.
Later on Thursday, Beijing also celebrated a 3-0 (25-16, 25-15, 25-21) victory against Yunnan.
Due to the crisis on the pitch, the club's plans to outsource its professional section and allow investors to join have been postponed as have talks about the second round of wage cuts for the squad.
Guoan now sit second in Group B with 25 points, with two rounds in the first stage remaining. Guoan have booked a spot in Group C for the championship race. Enditem
Wander Helder scored twice for Leeds and Aleksander Mitrovic scored twice for the home side, who fought back from 4-1 down to give Leeds a nervy last 25 minutes.
The formal consultation for the stadium at Bramley-Moore Dock is part of the legal process ahead of Liverpool City Council's planning authority making a decision before the end of this year.
Schwartzman, who ousted Rafael Nadal in the quarterfinals, beat Canadian Denis Shapovalov 6-4, 5-7, 7-6 (4) in the other semifinal.