Petra Kvitova

It's over a year since Czech tennis ace Petra Kvitova was stabbed by a knife-wielding attacker at her apartment in Prostejov, just before Christmas in 2016, but she still gets flashbacks of the unfortunate incident, and sometimes while on court. "I still have the flashbacks sometimes. Unfortunately, it [knife attack] will probably be there with me forever. Sometimes it happens on the court, sometimes when I'm with my family, sometimes when I'm alone somewhere, maybe in my apartment," Kvitova wrote in her column on playersvoice.com.au.