LONDON (Reuters) - Former champion Petra Kvitova regained her focus overnight to return with a zip in her step and see off Russian Ekaterina Makarova 6-3, 2-6, 6-3 to reach the fourth round at Wimbledon on Saturday.

Resuming a break down at 1-2 in the decider after play was suspended in the gloom late on Friday, the eighth-seeded Czech hit her stride immediately to forge 4-2 ahead under sunny skies.

Kvitova, the 2011 champion, briefly wobbled as 25th seed Makarova stemmed the tide with a break but the rally fizzled out and the Czech reasserted herself to set up a last 16 match with Carla Suarez Navarro of Spain.

She is one of just four top 10 seeds left in the women's draw, alongside Serena Williams, Agnieszka Radwanska and Li Na.