Domenec Torrent's men are now fourth in the 20-team standings, three points behind leader Atletico Mineiro.
Cadiz and Granada shared the points in an Andalusian derby which began with German Sanchez's header for the visitors in the 27th minute before Ivan Alejo's driven shot assured Cadiz its first home point of the season three minutes after halftime.
Sevilla opened the scoring in the 7th minute when Luuk de Jong fired home with his left foot after Barca failed to deal with a corner, but Barca levelled barely a minute later when Jesus Navas was unable to clear Jordi Alba's ball into the area, allowing Coutinho to pick his spot.
Next up for Halep is another 19-year-old youngster, Iga Swiatek of Poland, whom Halep defeated in the round of 16 here last year.
Also on Saturday, fifth-seeded Stefanos Tsitsipas earned a spot in the fourth round after his Slovenian opponent Aljaz Bedene retired from the match and hobbled off the court when trailed by 6-1, 6-2, 3-1.
The league's governing body is therefore inserting one match into each round that was initially scheduled for a later date.
Liu Jiacen scored 22 points and pulled down 11 rebounds for Shanxi. Zhao Zhifang also registered a double-double of 12 points and 12 boards. Captain Wu Tongtong nailed 21 points.
Liu Jiacen scored 22 points and earned 11 rebounds for Shanxi. Zhao Zhifang also registered a double-double of 12 points and 12 rebounds. Wu Tongtong, a member of Chinese women's national team, pocketed 21 points in the clash.
Elsewhere, Wolfsburg and Augsburg shared the spoils after playing out a goalless stalemate. Enditem
In the men's 1,500m race, world leader Cheruiyot fought off compatriot Kumari Taki in a fierce home straight brawl to take the win in three minutes and 34.31 seconds in front of 2000 spectators that were allowed the entry under COVID-19 control protocols.
Freiburg staged a well-positioned defense from the kickoff and was able to keep Lucien Favre's men on the distance in the opening stage.