Unseeded Zhu Lin upsets Petra Kvitova in Tianjin opener
China's Zhu Lin staved off a mid-match fightback to upset Petra Kvitova for her maiden top 20 victory in the first round of the Tianjin Open on Wednesday.
The unseeded Zhu, who won 6-4 5-7 6-4 in the pair's first meeting, held her own in the early exchanges against the two-times Wimbledon champion.
Kvitova was the first to blink at 4-4 as she handed her rival the chance to break. The Czech world number 17 missed out on a break in the next as the unforced errors crept up on her game.
Zhu ran up a 5-4 lead in the second set and appeared on course for a comfortable win before Kvitova produced a flurry of winners to level the contest at 1-1.
World number 113 Zhu went on the attack, taking a 5-3 lead in the decider. She had two chances to seal the match on Kvitova's serve before eventually prevailing.
"I played so relaxed today," Zhu said after the match.
"In the second set I was serving for the match, but she played great to win this, and then I came back in the third set and I played like my first set, and I think I did it!
"I just played my match. I didn't think too much about the win, I just enjoyed the match."
TIANJIN OPEN WOMEN'S SINGLES ROUND 1 MATCHES
Stefanie Voegele (Switzerland) beat Kristie Ahn (U.S.) 6-3 6-3
5-Yulia Putintseva (Kazakhstan) beat Lauren Davis (U.S.) 7-6(2) 4-6 6-2
3-Peng Shuai (China) beat Guo Hanyu (China) 6-2 7-6(5)
Beatriz Haddad Maia (Brazil) beat 4-Donna Vekic (Croatia) 6-7(4) 6-4 6-2
Sara Errani (Italy) beat Kateryna Kozlova (Ukraine) 6-2 6-1
Zhu Lin (China) beat 2-Petra Kvitova (Czech Republic) 6-4 5-7 6-4
Magda Linette (Poland) beat Kateryna Bondarenko (Ukraine) 3-6 6-3 7-5
Wang Xiyu (China) beat Danka Kovinic (Montenegro) 6-3 7-6(8)
Maria Sharapova (Russia) beat 9-Irina Begu (Romania) 6-4 6-2
Christina McHale (U.S.) beat Nao Hibino (Japan) 6-3 6-3
6-Maria Sakkari (Greece) beat Liu Fangzhou (China) 6-2 6-1
Sara Sorribes Tormo (Spain) beat Arina Rodionova (Australia) 6-2 6-7(3) 6-4
Duan Yingying (China) beat 7-Lesia Tsurenko (Ukraine) 6-4 7-6(2)
Aryna Sabalenka (Belarus) beat Han Xinyun (China) 6-3 6-3
Wang Yafan (China) beat 8-Alison Riske (U.S.) 6-3 6-3