WTA 1000 Madrid: Ons Jabeur achieves success and qualifies for quarters

Ons Jabeur qualified today for the quarter-finals of the WTA 1000 tournament in Madrid by eliminating Latvian Jelena Ostapenko.  Jabeur, the 9th player in the world, did not tremble while encountering Latvian Jelena Ostapenko, 10th in the world, thi...