Errani meets Barthel in final

Top seed Sara Errani will face Mona Barthel in the final of the WTA Open GDF Suez in Paris on Sunday.

Errani, the world number seven from Italy, was leading Kiki Bertens 5-0 in the first set when the Dutch player retired due to back pains.

Germany's Barthel was a convincing winner in the second semi-final, seeing off Frenchwoman Kristina Mladenovic 6-1 6-4 in just 65 minutes.