The Romanian was flummoxed by a slew of dodgy line calls en route to a three-set win over Cibulkova at the 2012 Bank of the West Classic.

The former world No. 1 and 2015 champion scored a 19th straight win over her compatriots with a victory against in-form Sorana Cirstea.

Two of 2021’s standout performers will face off for a spot in the semifinals of the WTA 500-level event.

Meanwhile, Paula Badosa takes on Australian No. 2 Ajla Tomljanovic in her first Grand Slam as a Top 10 player.

But the day's best match of all may be Nick Kyrgios vs. Felix Auger-Aliassime.

Playing in her first tournament in over 15 months, Andreescu couldn't overcome the tricky 35-year-old, while Serena had no trouble against Nina Stojanovic.

The former No. 21 finished at No. 86 on the 2020 year-end rankings, but she’ll head into 2021 just outside the Top 70 after winning the biggest event of the post-season.

Kiki Bertens virtually defended her actual 2019 Madrid Open title, while pre-tournament favorite Andy Murray fulfilled his destiny thanks to a selfless act by Diego Schwartzman.

The defending Madrid women's champion retained her crown, virtually, after dispatching Fiona Ferro, 6-2, on Thursday.