This is the breakthrough that Muguruza needs, I think. I would say she and Vika are the only ones with the game to take Serena. All credit to Garbiñe today, but I do think that the history, and the weather were weighing Serena down, a bit. Her footwork was not there. She was a bit flat, but that is also the opponent. Garbiñe is aggressive, brave, powerful and confident. That's what it takes to beat Serena. I hope she takes this to the bank. I think Vika can, too, if she comes back healthy. As Serena is burnishing the resume, she will be aging out, too. I'd like to see, for example, a good Azarenka/Muguruza rivalry to come.
