Sharapova to face Li in semi-final after pair both win in straight setsMaria Sharapova blasted her way into the French Open semi-finals to complete a line-up of such quality the Williams sisters will hardly be missed.The former Wimbledon champion hammered rising German star Andrea Petkovic 6-0, 6-3 and today meets Chinese No 1 Li Na, who also had a surprisingly easy 7-5, 6-2 win over Victoria