4. Rafael Nadal v Daniil Medvedev – 2019 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.

Daniil Medvedev figures this is his time to shine: He loves playing tennis on hard courts like those used at the D.C. Open. Doesn't matter what else he's done this season or how things ended for ...