Former Wimbledon champion Petra Kvitova takes on Flavia Pennetta this afternoon in the third round of the women's singles at the London 2012 Olympic Games (13:00 BST start).
The Olympic draw has opened up for Kvitova with second seed Agnieszka Radwanska crashing out in the first round, and if the big serving Czech can get to the quarter-finals she'll fancy her chances against either Maria Kirilenko or Julia Goerges.
Kvitova would dearly love to add an Olympic medal to her 2011 Wimbledon title, but she'll have to step up her game after two unconvincing wins.
She's needed three sets to see off Kateryna Bondarenko and China's Shuai Peng.
"I played so, so bad in the second set. I did a lot of mistakes on my forehand," Kvitova said after her 7-5 2-6 6-1 win over Peng in round two.
"It was a big key to break her in the first game of the third. It wasn't easy - I had a lot of break points - but after that it was much easier."
Pennetta is normally at her best on clay, but she's taken advantage of an early defeat for Slovakian 12th seed Dominika Cibulkova to reach the last sixteen.
Pennetta used to enjoy a big hold over Kvitova, winning their first three career matches, but the Czech has begun to hit back in the past couple of years, winning 3-6 6-3 6-3 when they met in the fourth round of the 2011 Australian Open.
Prediction: Kvitova in three.