Kvitová into quarter-finals in Adelaide

Czechia’s Petra Kvitová has reached the quarter-finals of tennis’s Adelaide International. The two-time Wimbledon winner saved three set points before overcoming China’s Zheng Qinwen in the first set; her opponent then retired from Wednesday’s match with an injury.

Kvitová, who is 32, will be the highest seeded Czech woman at the next week’s Australian Open, at 15th.