Czech Republic's Kvitova celebrates her win over USA's Boserup on Day One of the French Open in Paris yesterday. Pic/Getty Images

Petra Kvitova said yesterday's first-round victory at the French Open felt like winning twice as the Czech star made an emotional return from a harrowing knife attack at her home in December. The two-time Wimbledon champion swept aside American Julia Boserup 6-3, 6-2 in her first match since suffering career-threatening injuries to her left playing hand when she tackled an intruder at her home in the eastern Czech town of Prostejov.