Stosur was unable to overcome the 2016 French Open champion Garbiñe Muguruza, with the Spaniard drilling past Stosur 6-0, 6-2.

Ranked 3rd in the tournament, 23 year old Muguruza dominated the first set before rounding out the match easily.

Similar fortunes, but a somewhat closer encounter, for Daria "Dasha" Gavrilova last night as she was defeated by 16th ranked Elise Mertens from Belgium.

It wasn't to be for 25th ranked Gavrilova as she succumbed 6-3, 6-1 to Mertens.

The losses end hopes of the Aussies in the French Open this year.