US Open tennis 2026: Sabalenka, Tiafoe and Shelton advance on day four – as it happened

Sabalenka made quick work of Iatcenko in the second round, while Tiafoe, Tsitsipas, Pegula and Muchova were among the other notable winners

And Nakashima breaks too - he's hitting it hard off both wings and I wonder if he's in the process of finding a new level. The first few times I watched him, I thought he had a bit of something and, real talk, I thought he'd be better by now than he is. But I really like what I'm seeing from him and, as we know, progress isn't always linear.

It's a good start for Medvedev, Gorzy - who saved five match points in round one - tamely ceding serve to 15.