"It's not easy for us to return to court. I always want to say thanks to all medical staff across the country for giving us a safe environment to play. We appreciate it a lot," Wu said.
Peru head coach Ricardo Gareca has insisted he won't use the team's weakened squad as an excuse for any poor performances.
Cavani was left out of the Celeste squad by head coach Oscar Tabarez, paying the price for having not played since March.
It was immediately clear whether the pair would be replaced.
Michail Antonio, Pablo Fornals and Jared Bowen scored West Ham's goals in the 14th, 34th and 84th minute of the game.
The arrival of the national quartet of Li, Yang Liwei, Huang Sijing and Li Yuan meant Inner Mongolia, playing in the WCBA for the second year, emerged as a rising powerhouse.
The glittering play in the university basketball league earned Fang an overall WBCA top draft pick by Henan in 2020.
"I think I played a really good match. I was very aggressive. I knew from last year I had to change something, so I really wanted to be better than last year and definitely, I was today," said the world No. 2.
"She played unbelievable today and she was everywhere and she hit all the balls in a very strong, very powerful way," the world No.2 said after the match. "It was a little bit cold and I couldn't be at my best."
Real Sociedad had a comfortable 3-0 win at home over Getafe thanks to Mikel Oyarzabal's first half penalty and goals from Mikel Merino and Portu in the 78th and 81st minutes.
The estimated timing for the start of training camp will be announced at a later date.