Martina Hingis withdrew from the French Open, the only Grand Slam she hasn't won in her career. After losing to compatriot Patty Schnyder in Berlin, Martina admitted having back and hip injuries.
World No. 6 pulled out of the Italian Open, hoping she would recover till Roland Garros. However, the Swiss stated that she won't play in Paris unless she's 100% ready.
It seems she didn't manage to recover that quickly.