Petra Kvitova will be out of action for at least six months after being attacked by an intruder at her home Petra Kvitova is likely to miss most of the 2017 season after her surgeon estimated she would not be able to return to the tennis court for at least six months. The 26-year-old, a two-time Wimbledon champion, suffered serious injuries to her racket-holding left hand in an attack by an intruder at her apartment in the Czech Republic on Tuesday.