The women's world number one tennis player hasn't had an easy ride into the French Open quarter-finals, with the Polish star Iga Swiatek being taken to three sets by the unseeded Qinwen Zheng of China.
The final men's quarter-final pairing will also be decided this morning, with Croatia's Marin Cilic and the second seed, Russian Daniil Medvedev, facing off later this hour.
Tennis correspondent Dave Luddy spoke to Susie Ferguson.
