New world No. 9 Petra Kvitova loses 6-3, 6-4 in the final of the Prague Challenger to Magdalena Rybarikova. Kvitova, who won Madrid, chose to play her home area Challenger rather than Rome.

Jakub Mensik announced himself, winning the Challenger in Prague at just 17 and taking on Taylor Fritz in the third round at the US Open in front of a big crowd on his 18th birthday (although that ...