Amanda Anisimova of the U.S. celebrates winning the women's singles quarter finals match against Anastasia Pavlyuchenkova of Russia at the Wimbledon Tennis Championships in London.

Anastasia Pavlyuchenkova of Russia, right, and Amanda Anisimova of the U.S. hug after the women's singles quarter finals match at the Wimbledon Tennis Championships in London.

Amanda Anisimova of the U.S. reacts during the women's singles quarter finals match against Anastasia Pavlyuchenkova of Russia at the Wimbledon Tennis Championships in London.

Anastasia Pavlyuchenkova of Russia returns the ball to Amanda Anisimova of the U.S. during the women's singles quarter finals match at the Wimbledon Tennis Championships in London.

Amanda Anisimova of the U.S. rests under an umbrella during the women's singles quarter finals match against Anastasia Pavlyuchenkova of Russia at the Wimbledon Tennis Championships in London.

Anastasia Pavlyuchenkova of Russia returns the ball to Amanda Anisimova of the U.S. during the women's singles quarter finals match at the Wimbledon Tennis Championships in London.

Amanda Anisimova of the U.S. plays a return to Anastasia Pavlyuchenkova of Russia during the women's singles quarter finals match at the Wimbledon Tennis Championships in London.

Anastasia Pavlyuchenkova of Russia returns the ball to Amanda Anisimova of the U.S. during the women's singles quarter finals match at the Wimbledon Tennis Championships in London.

Amanda Anisimova of the U.S. serves to Anastasia Pavlyuchenkova of Russia during the women's singles quarter finals match at the Wimbledon Tennis Championships in London.

Anastasia Pavlyuchenkova of Russia serves to Amanda Anisimova of the U.S. during the women's singles quarter finals match at the Wimbledon Tennis Championships in London.