Yu Jingyao from Beijing and world champion Fu Yuanhui had the same trouble as Yu.
The other match in the Chengdu division saw a goalless draw between Suzhou Dongwu and Inner Mongolia Zhongyou.
"I hope we will get some new arrivals. We've still got time to fix everything, and things are in progress," Mueller added.
Yunnan made more errors in the second set, especially in serve and back court receiving, only to witness Beijing take the set again.
"Lyu had a couple of chances to beat me 3-0 and again to beat me 3-1, so he'll be disappointed there because he'll feel he lost it rather than I won it, but he gave me chances and all I can do is to pick up the pieces, which I did," Selby told the tournament's website.
The match featured several Chinese national team players, including Jiangsu's Zhang Changning and Tianjin's Li Yingying.
More than 2,000 competitors from China, Britain, Japan, Canada, Spain and other countries and regions will take part in the competition, which is comprised of a 65km race, 25km race and 5km race. The top eight contestants in the men's and women's groups can get prize money ranging from 100 yuan to 2,000 yuan.
The National Biathlon Center will hold 11 biathlon events of the 2022 Winter Olympic Games, and the National Cross Country Center will witness 12 gold medal events in cross country skiing.
SUZHOU, China, Sept. 22 (Xinhua) -- Hulk scored from the penalty area as Shanghai SIPG beat Shijiazhuang Ever Bright 1-0 in the 12th round of the Chinese Super League (CSL) here on Tuesday.
Five minutes later, Zhu Jianrong nearly contributed another goal for Huanghai in his one-on-one with Teda's goalkeeper. But his volley from small angle missed the target.
Newly-crowned US Open champion Dominic Thiem, who has lost back-to-back Roland Garros finals to Nadal, has been drawn into the same half as the Spaniard and faces non-seeded former world No. 3 Marin Cilic.