Daniil Medvedev, Rafael Nadal poised for U.S. Open tests

Daniil Medvedev will open the defense of his U.S. Open title next week against American Stefan Kozlov, while Rafael Nadal is on a collision course with Carlos Alcaraz, who is set to succeed him as Spain's top tennis player.

The pairings were released Thursday, and they are filled with challenges for some of the top players in the draw. The U.S. Open begins Monday at Flushing Meadows in New York.

Medvedev, the top seed,