Stephens won their only previous meeting on a hard court in 2012. She won in 3 sets.
Stephens reached the semi finals last year losing to eventual Champion Stosur. She also reached the 4th round at the French Open. These are a tough couple of weeks for her.
Parmentier is having a superb season and will be competitive. She is playing well above her average levels.
Back Stephens if she goes a break behind. It won’t surprise me if Parmentier is able to take it to a deciding set.