"I thought that was an unethical end to that collaboration," Qinwen Zheng said of ex-coach Wim Fissette.
"I don't agree with that...this is not acceptable," world No. 1 said.
The American hopes to ride her momentum to a strong finish in 2023.
The Belgian supercoach parted ways with Zheng after a brief partnership that yielded a quarterfinal at the US Open.
The Slovenian umpire is provisionally suspended, pending Anti-Corruption charges.
"It was a really tough, tough loss for me. It was super emotional," Aryna Sabalenka said of her US Open final defeat.
The polls are now open for the International Tennis Hall of Fame's Class of 2024.
