monica niculescu

Zverev was undeniable in his 6-4, 6-4 defeat of South African Kevin Anderson on Sunday at Rock Creek Park Tennis Center.

Gael Monfils beat Ivo Karlovic, 5-7, 7-6 (6), 6-4, Sunday at the Citi Open to earn his first trophy in 2 1/2 years.

Marin Cilic will face Kei Nishikori in a semifinal match at the Citi Open on Saturday in Washington, D.C.