Petra Kvitova battles past Ana Ivanovic in Miami

Petra Kvitova came from a set down to beat Ana Ivanovic 3-6 6-0 6-0 and move into the fifth round of Miami Masters this evening.

Both players had little trouble holding serve in the opener until the sixth game, when Ivanovic managed to take advantage of the set's only break point to move into the lead.

The rest of the set also went with serve as the number 12 seed held on for a 6-3 victory, wrapping it up in style with a love game.

From that point on it was all about Kvitova, however, as she stormed past Ivanovic in the second set, breaking the Serb three consecutive times to cruise to a 6-0 win.

It was more of the same in the deciding set as once again Kvitova dominated on both her own serve and Ivanovic's serve, breaking three more times to win a second consecutive set 6-0 and wrap up the match with her fourth match point.