Newly-promoted Stuttgart inflicted Mainz's second loss in as many games, as goals from Silas Wamangituka, Daniel Didavi, Mateo Klimowicz and Sasa Kalajdzic secured a 4-1 victory.
World No. 1 and top seed Novak Djokovic will kick off his campaign for an 18th major title against Sweden's Mikael Ymer later on the central court. Enditem
Earlier on Sunday, Wissam Ben Yedder struck in each half as nine-man Monaco held on to overcome Strasbourg 3-2 at home. Right-back Ruben Aguilar added another for Niko Kovac's side in stoppage time of the first half.
"We were not in form at the start. Guards didn't handle the ball well on our first possession, which affected the team's rhythm and mentality," admitted Ji.
After squandering seven set points, Mladenovic was unable to close out the set, losing 7-5 before losing the second set 6-3.
Song clinched the title in an personal best of 5.30 meters, while Yao, winner of the 2020 Chinese National Athletics Championships, finished second with 5.15m. Han Guangyan of An'hui won the third place with 5.00m.
It didn't take too long for the former Inter Milan forward to add another as he slotted home in the 62nd minute after receiving Mbappe's fine cross.
The reigning Portuguese champions have offered 15 million euros (around 18 million U.S. dollars) to prise the 23-year-old away from Porto Alegre, Globo Esporte said on Wednesday.
China's Zhang Shuai overcame local favorite Alize Cornet 6-4, 7-6 (3) to reach the third round, equaling her previous best record at Roland Garros.
Rookie Zheng Muyan, 18, defeated Olympic champion Ye Shiwen in the women's 200m breaststroke to take the title. However, Yu Jingyao was absent from that final, as she failed to make the top eight in a selection of physical tests held from September 22 to 23 - a new requirement to qualify for the championships.
A favorable group draw for the 2020-21 Champions League completed the Bavarians' perfect day, as they will meet Atletico Madrid, RB Salzburg, and Lokomotiv Moscow in Group A.