PRAGUE - Australia's world number 25 Samantha Stosur will face last year's Roland Garros runner-up Lucie Safarova in the final of the Prague Open clay-court event after both progressed from the semi-finals on Friday. Stosur went through after top seed Svetlana Kuznetsova withdrew before their scheduled semi-final clash on Friday. The Russian world number 13 pulled out complaining of a thigh injury, leaving Stosur to advance to a final on Saturday against Safarova, the 16th-ranked Czech who beat compatriot Karolina Pliskova 6-4, 7-6 (7/4).