On Thursday, players competing in tour-level events across three continents looked to move one step closer to the business end of the week.
Here are the Top 5 photos from Doha, Rotterdam and Buenos Aires. (All photos Getty)
A day after battling past Aryna Sabalenka in Doha, the former world No. 1 came out firing to dispatch Maria Sakkari, 6-3, 6-1. Muguruza did not face a break point, taking 30 of her 39 service points in the comprehensive 66-minute victory.