Also on Tuesday, men's singles seventh seed Matteo Berrettini of Italy cruised to a 6-3, 6-1, 6-3 victory over Canadian Vasek Pospisil.
In the 33rd minute Fati's acceleration then drew a foul in the area from Mario Gaspar and Messi slotted home the penalty to make it 3-0 and Pau Torres scored an own goal with the last action of the first half when he put Messi's clipped ball past the stranded Asenjo under timid pressure from Busquets.
The 24-year-old Sherif, who ranks 172nd in the world, has become the first Egyptian woman to present at a Grand Slam main draw, while Pliskova, 27, is bidding for her first major title in her 33rd Grand Slam appearance.
After the restart, both sides traded attacks as Dabbur pulled over the target from a promising position before Joshua Zirkzee rattled the woodwork from a tight angle on the hour mark.
New arrival Nayef Aguerd's goal after 33 minutes put Rennes in front. Serhou Guirassy scored a brilliant volley set up by winger Romain Del Castillo in the 52nd minute to extend Rennes' lead, before Adrien Hunou added the third in the closing period with a superb lob.
Rui Naiwei of China plays chess on line during the 3rd round match at the third edition of Wu Qingyuan Cup Women's Go Tournament in Fuzhou, southeast China's Fujian Province, Sept. 29, 2020. (Xinhua/Lin Shanchuan)
The use of new technology became a hot topic at the show, and more companies are trying to improve their products by using tech such as 5G and AI.
However, it added that Gremio are loath lose another regular goalscorer after the departure of Everton Soares to Benfica in August.
Elsewhere, Borussia Monchengladbach are still waiting for their first win of the season as they shared the spoils with Union Berlin following a 1-1 draw.
1 Fati ready to become new Barca hero
Schalke has worn out 23 coaches in the last 20 years.