Two-time Wimbledon tennis champion Petra Kvitova has undergone nearly four hours of surgery on her playing hand after she was was attacked by a knife-wielding intruder in her home in the Czech Republic.

“The scale of the injury is serious, but Petra is young and strong, according to the surgeon, who sees no reason why she could not return to playing tennis,” Karel Tejkal, spokesman for the Czech Fed Cup team, said.

Doctors operated on all five fingers of her left hand and she will not be able to exert pressure on the injured hand for three months,” Tejkal said.