Anisimova, Collins and Opelka also saw their bids at Hard Rock Stadium ended.

Saturday's meeting between Opelka and Rune might not be easy on the eyes, but this should be a lengthy match that features a ton of holds.

The PTPA called the women's and men's tours, the ITF and the ITIA a "cartel, while the four major events—Wimbledon, US Open, French Open and Australian Open—were classed as "co-conspirators".