Cadiz's win in Bilbao means it has won its two away matches this season, but lost its two home games and it has another difficult task when it entertains a Granada side that qualified for the group stage of the Europa League on Thursday night.
Clinching a victory in his 100th match at Roland Garros, the record 12-time champion secured a place in the last four for 13th time in the clay major, ending an impressive run from Sinner who had upset 11th seed David Goffin and 6th seed Alexander Zverev in his previous matches.
The 31-year-old, who is to face No. 7 seed Petra Kvitova in the next match, also became the first Chinese singles player since Li Na in 2012 to reach the fourth round at Roland-Garros.
Kitata's compatriot Sisay Lemma was three seconds further back to finish third.
Elsewhere Villarreal's Gerard Moreno retains his place in the squad after an excellent start to the season, as does FC Barcelona's Ansu Fati, who scored in the 4-0 defeat against the Ukraine a month ago. Meanwhile Mikel Oyarzabal is also recalled after he too had to drop out in September after testing positive for COVID-19.
Early indications are that Carvajal could be out of action for up to two months, which means as well as the forthcoming internationals, he will also have to sit out this weekend's La Liga trip to play Levante, and league matches against Cadiz, Huesca, Valencia and Villarreal.
Gaston is to challenge third seed Dominic Thiem in the fourth round. Earlier in the day, the Austrian had claimed another straight-sets victory over 28th seed Casper Ruud, beating the Norwegian 6-4, 6-3, 6-1.
In a newly-built racquetball court, Liu Shangying was coaching two college students on their first day of playing racquetball.
The evening featured 20 performances. Tong Jian told reporters that 26 athletes took part in the event, which was the largest performance their team had participated in. Several movie stars and celebrities were in attendance to get a first glimpse of the festivities.
"Now we can play matches. Even without fans on site, we can feel satisfied back on court, so I cherish it pretty much," she noted.
On the Shandong side, Yang Hengyu contributed 16 points, while Qiao Yanzi added 12.