Elsewhere, Freiburg and Wolfsburg shared the spoils following a 1-1 stalemate as Josip Brekalo cancelled out Nils Petersen's opener. Enditem
Meanwhile Jordi Alba's display at the weekend makes fans wonder why he was included in the list of possible summer departures.
"The club has, and will continue to, follow all protocols relating to Covid-19 and Thiago will remain in self-isolation for the required period of time," informed the club.
In the women's elite race, former world half-marathon record holder and winner of the 2019 New York Marathon winner Joyciline Jepkosgei will spearhead the event.
Liu Shaofeng from Shandong and Tianjin's Yang Jintong finished joint first in the men's 50m freestyle in 22.72 seconds.
Persepolis FC head coach Yahya Golmohammadi (R) and player Sayed Jalal Husseini attend a press conference ahead of the round of 16 match of AFC Champions League between Persepolis FC of Iran and Al Sadd of Qatar in Doha, capital of Qatar, Sept. 26, 2020. (Photo by Nikku/Xinhua)
For the first time this season, Thomas Tuchel was able to field his Fantastic Four - Neymar, Mbappe, Icardi and Angel Di Maria - at the front and it was rewarded with a comfortable victory.
Angel's first goal was an overhead kick which was originally ruled out for offside, but reinstated after the referee consulted the VAR.
In the 85th minute, Feng fell to the ground again in the box after a close contact with Shanghai defender Shi Ke, but the referee did not give a penalty judging that Feng tripped himself.
Celta held Barca to a 2-2 draw last season, with Iago Aspas netting a late equalizer and the now departed Luis Suarez scoring twice for Barca, so Thursday will be an indication as to how the two teams have evolved in the last three months.
Ninth seed Denis Shapovalov of Canada crashed out after suffering a shock defeat to Roberto Carballes Baena of Spain.