Miami Open finalist faces quick transition for Davis Cup.

It's John Isner vs. Sascha Zverev for all the marbles in Miami. Keep up with all the action with the Miami Open Live Blog sponsored by Tecnifibre.

Keep up with all the action from the Miami Open women's final between Sloane Stephens and Jelena Ostapenko in the Live Blog sponsored by Tecnifibre.

Hall of Famer cites simple reason for split with former world No. 1. 

Keep up ith the action from today's men's singles semifnals at the Miami Open with the Live Blog, sponsored by Tecnifibre.

Two months after announcing an official arrangement, the pair have elected to split, leaving Sam Sumyk as Muguruza's only coach.

Victoria Azarenka, Alexander Zverev, Sloane Stephens and More. Follow WTA semifinal and ATP quarterfinal action with the Tecnifibre Miami Open Day 10 Live Blog.