Wuhan had the upper hand for most of a back-and-forth second half, heading into the final frame with a three-point margin, but had to watch as their lead slipped away.
It was Hertha who created the first chance of the game, as Dodi Lukebakio pulled wide from a promising position following a fast break in the 9th minute.
The 31-year-old, who is to face No. 7 seed Petra Kvitova in the next match, also became the first Chinese singles player since Li Na in 2012 to reach the fourth round at Roland-Garros.
Wang Lili made 11 of 20 field shots and scored 25 points for Xinjiang, one of the title contenders over the current campaign. Wang Siyu helped with 11.
During the 18-round campaign, teams face lung-busting altitude, scorching tropical heat, long-haul flights between many cities and passionate fans that make stadiums such as Argentina's La Bombonera or Brazil's Maracana among the world's most inhospitable venues for opponents.
Baum's face spoke volumes after losing his first game as the successor to sacked manager David Wagner 4-0 against RB Leipzig.
"It's been long ride definitely. Everything came to my mind when I had my whole family, people who I loved to help me through the tough, tough time," said Kvitova. "I was just playing in the Philippe Chatrier, it was such nice to win the match and to be in the quarterfinal."
Last year "champion" Banska Bystrica (crowned after the abrupt end of the 2019/2020 season in March caused by the COVID-19 strike and subsequently stripped of the title as the governing body decided not to crown a champion of the shortened season) and the runner-up Slovan Bratislava are still trying to find their lost forms, losing their respective second-round fixtures.
"We had a poor start as our players didn't show enough mentality, but I'm satisfied with the players' performance in the following three quarters," Shaanxi coach Jiang E'Ying commented.
In addition, the quality of the 10 member teams means there are no easy games for anyone; the region boasts four national sides in FIFA's current top 10 and seven in the top 25.
WINDHOEK, Oct. 6 (Xinhua) -- Namibia football interim head coach Bobby Samaria on Tuesday announced a 30-man squad that will lock horns with South Africa in an international friendly on Thursday in Rustenburg, South Africa.