Shan said her on-fire shooting performance was derived from confidence.
Next up for Kvitova is Germany's Laura Segemund, who dispatched Spaniard Paula Badosa 7-5, 6-2 to advance. Enditem
Meanwhile Southampton claimed a routine 2-0 victory at home to West Bromwich Albion, who is still searching for its first win of the campaign.
"I don't know what happened actually, I felt like I was playing perfectly, I was so focused the whole match, even I am surprised that I can do that," said the 54th-ranked Swiatek, who fired 30 winners and won 81 percent of her first-serve to wrap up the victory.
2. Neymar has Ronaldo, Pele in his sights
"It's been long ride definitely. Everything came to my mind when I had my whole family, people who I loved to help me through the tough, tough time," said Kvitova. "I was just playing in the Philippe Chatrier, it was such nice to win the match and to be in the quarterfinal."
Djokovic showed great sportsmanship in the match when rain fell down heavily on Galan's side of the court as the new Court Philippe-Chatrier roof was closing, the Colombian slipped over. Djokovic responded by calling a pause of the match until the conditions came back equal for both sides.
The 19-year-old rising star wasted three set points when she took a 5-3 lead in the first set and stormed to 40-0 in the ninth game. But Zhang battled back and held the serve before breaking Burel's in the tenth to level the score at 5-5.
After four games of the season, Athletic Club Bilbao coach Gaizka Garitano has emerged as the early favorite in the 'sack race' after his side lost 1-0 at home to nine-man Cadiz, before being beaten by the same score away to Alaves on Sunday.
The AFC Disciplinary and Ethics Committee said, "Alkasir violated Article 58.1 of the AFC Disciplinary and Ethics Code (2019 Edition)."
BERLIN, Oct. 4 (Xinhua) -- Manuel Baum seems to be a driven by unshakeable optimism. Despite having lost his first game as the new coach of Schalke 04, the 41-year-old encouraged the Royal Blues' squad, and supporters to continue their effort to achieve a turnaround.