Petra Kvitova rallies to beat Sofia Kenin in Miami Open pre-quarters

The world number nine Petra Kvitova survived a stern test from American Sofia Kenin to register 3-6, 6-2, 6-4 win in Miami Open round of 32.

Petra Kvitova, of the Czech Republic, returns a shot from Sofia Kenin during a tennis match at the Miami Open. | AP 

Sofia Kenin returns a shot from Petra Kvitova, of the Czech Republic during a tennis match at the Miami Open. | AP

Petra Kvitova, of the Czech Republic serves to Sofia Kenin during a tennis match at the Miami Open. | AP

Sofia Kenin celebrates after winning the first set against Petra Kvitova, of the Czech Republic during a tennis match at the Miami Open. | AP

Petra Kvitova, of the Czech Republic, returns a shot against Sofia Kenin during a tennis match at the Miami Open. | AP

Sofia Kenin serves to Petra Kvitova, of the Czech Republic during a tennis match at the Miami Open. | AP

Petra Kvitova, of the Czech Republic, serves to Sofia Kenin during a tennis match at the Miami Open. | AP

Sofia Kenin returns a shot from Petra Kvitova, of the Czech Republic, during a tennis match at the Miami Open. | AP

Sofia Kenin returns a shot from Petra Kvitova, of the Czech Republic during a tennis match at the Miami Open. | AP

Petra Kvitova, of the Czech Republic, celebrates after defeating Sofia Kenin 3-6, 6-2, 6-4, during a tennis match at the Miami Open. | AP