Suárez Navarro, a tenacious Spaniard with a fluid one-handed backhand, was a known quantity for Williams, having won thee of their previous seven matches.
Kvitova is a two-time Wimbledon champion, but her ability to continue to contend for major titles — or even play at all — had been in doubt after a vicious knife attack during a home invasion in December severely damaged her left hand.
Muguruza, the reigning Wimbledon champion, led by 4-1 in the first set but struggled to match Kvitova’s power on crucial points.
The loss notwithstanding, Muguruza remained upbeat about her summer, which included a title in the Cincinnati event.
At her first two majors after returning from her hand injury, Kvitova did not advance past the second round.
- Kvitova downs Muguruza to reach quarter-finalsReuters
- Less than year after attack, Kvitova faces Williams at OpenYahoo Sports
- How Kvitova powered past Muguruza and took another step in her journeyTennis Magazine
- Petra Kvitova Upsets Garbine Muguruza to Reach US Open Quarterfinals After ...Sports Illustrated
- US Open: Petra Kvitova tops Garbine Muguruza, reaches quartersNewsday
- Kvitova powers past Muguruza and into US Open quartersAOL UK
- Battle for No.1 Update: Can Svitolina or Pliskova catch Muguruza?WTA Tennis
- Petra Kvitova stuns Garbine Muguruza to set up Venus Williams quarter-finalMetro
- US Open 2017: Classy Petra Kvitova topples third seed Garbine MuguruzaEurosport.com
