With Djokovic retiring in the fourth round and Roger Federer losing in the quarters, many thought Nadal was to be the easy winner of the 2019 US Open. Fifth seed Daniil Medvedev had other ideas.

Groups and starting times for the fourth round of the U.S. Open, at the Oakmont Country Club.

In what became an instant classic, Grace Kim used a 4-hybrid from the fairway to create some of the most dramatic golf in ...