The U.S. Open, the final Grand Slam of the 2025 season, brings a full slate of storylines, top seeds and a packed schedule of play. Here’s everything to know before it begins.

Aryna Sabalenka returns to the US Open as the reigning champion and bookmakers’ favourite, but her 2025 season has been anything but smooth sailing.

Andrea Vavassori and Sara Errani were the only regular mixed doubles pair in the draw, and they were determined to win the title for the players who were snubbed from the competition