The 25-year-old equalized with the last kick of the match after Rodinei Almeida brought down Elber Pimentel with a rash challenge.
Messi failed to appear for routine PCR tests on August 20 ahead of Barca's return to training, and did not attend any of the sessions under new coach Ronald Koeman.
Medvedev will next face fellow American Frances Tiafoe, and Thiem will take on Canada's rising star Felix Auger-Aliassime.
Among them was 11-year-old Shen Xuanhong, who led the way in the Qiandao Lake section. Despite his young age, he has been practicing canoeing for three years. However, this was the first time he rowed in the lake for a long distance, seven kilometers in total, which made him "excited and nervous."
As the match seemed headed for a goalless draw in the second half, Shijiazhuang broke the deadlock in the 88th minute with a cross from Brazilian forward Matheus Leite Nascimento, helping midfielder Chen Pu to score an open goal.
Mbappe is the seventh PSG player to test positive for COVID-19. The Ligue 1 champions last week reported six confirmed cases, whom French media L'Equipe said are Neymar, Mauro Icardi, Marquinhos, Angel Di Maria, Leandro Paredes and Keylor Navas. All six had holidayed on the Spanish island of Ibiza after the Champions League final against Bayern Munich on August 23.
Teda had a poor performance in the current season, managed one draw and seven defeats before Sunday's game.
The Austrian will now challenge 2014 champion Marin Cilic of Croatia in the third round. Thiem has a 2-0 lead in their head-to-head series.
Zuriko Davitashvili (R) of Georgia vies with Aleksandar Trajkovski of North Macedonia during the UEFA Nations League football match between Georgia and North Macedonia in Tbilisi, Georgia, Sept. 8, 2020. The match ended in a 1-1 draw. (Photo by Tamuna Kulumbegashvili/Xinhua)
However, Alfaro, who took charge last month after the resignation of Jordi Cruyff, refuses to accept that Ecuador will be outsiders to secure a berth in the next edition of football's showpiece tournament.
Borhani then joined the Turkey league after her journey in Bulgaria. She called her overseas experience 'ground-breaking' for Iranian female athletes.