He became a first-team regular under manager Renato Gaucho following the departure of Everton Soares to Benfica last month.
Felix Bastians should have snapped Teda's winless run in the 85th minute but the German saw his penalty saved by goalkeeper Deng Xiaofei.
After dropping his serve to trail 6-5 behind in the first set of his fourth round match against Pablo Carreno Busta of Spain, Djokovic angrily smashed a ball in frustration, accidentally striking the line judge in the neck and causing her to fall to the ground.
There were also third round wins for Belgian star Elise Mertens, Belarussian veteran Victoria Azarenka and France's Alize Cornet.
Samir Memisevic (C) of Hebei China Fortune competes during the 9th round match between Hebei China Fortune and Shanghai SIPG at the postponed 2020 season Chinese Football Association Super League (CSL) Suzhou Division in Suzhou, east China's Jiangsu Province, Sept. 5, 2020. (Xinhua/Li Bo)
SUZHOU, China, Sept. 5 (Xinhua) -- Hebei China Fortune upset giants Shanghai SIPG with a 2-0 victory in the 9th round of the Chinese Super League (CSL) on Saturday night, while Chen Pu's winning goal helped Shijiazhuang Ever Bright overcome Qingdao Huanghai 1-0.
"This whole situation has left me really sad and empty. I checked on the lines person and the tournament told me that thank God she is feeling ok. I'm extremely sorry to have caused her such stress. So unintended. So wrong," Djokovic said.
Pepe has made 99 appearances for Gremio and scored 21 goals since making his professional debut in 2017.
Zhejiang then defended some honor with Huang Yuxiang overcoming Tan Zhendong 14-15, 11-6, 11-7, 11-6 in the men's singles, and Ni Bowen/Lv Rouhao beat Zhang Xinran/Chen Zirui 11-5, 11-2, 11-5 in the women's doubles.
In the men's singles, both second seed Dominic Thiem of Austria and third seed Daniil Medvedev of Russia advanced into the fourth round. Thiem conquered former US Open champion Marin Cilic of Croatia 6-2, 6-2, 3-6, 6-3, while Medvedev made light work of local player Jeffrey Wolf, winning 6-3, 6-3, 6-2.
Messi last week said he'd stay, but made it clear he was unhappy with both club President, Jose Maria Bartomeu, and the failure to develop a balanced squad and he could be an awkward dressing room presence for the new coach.