Taylor Townsend, of the United States, reacts after defeating Mirra Andreeva, of Russia, during the third round of the U.S. Open tennis championships in New York.

Mirra Andreeva, of Russia, shakes hands with Taylor Townsend, of the United States, after Townsend defeated her in the third round of the U.S. Open tennis championships in New York.

Mirra Andreeva, of Russia, returns a shot to Taylor Townsend, of the United States, during the third round of the U.S. Open tennis championships in New York.

Taylor Townsend, of the United States, returns a shot to Mirra Andreeva, of Russia, during the third round of the U.S. Open tennis championships in New York.

Mirra Andreeva, of Russia, serves to Taylor Townsend, of the United States, during the third round of the U.S. Open tennis championships in New York.

Taylor Townsend, of the United States, returns a shot to Mirra Andreeva, of Russia, during the third round of the U.S. Open tennis championships in New York.

Mirra Andreeva, of Russia, returns a shot to Taylor Townsend, of the United States, during the third round of the U.S. Open tennis championships in New York.

Mirra Andreeva, of Russia, reacts after losing a point while playing against Taylor Townsend, of the United States, during the third round of the U.S. Open tennis championships in New York.