Alexander Zverev, Ekaterina Makarova crowned champs at Citi Open

Alexander Zverev defeated Kevin Anderson 6-4, 6-4 to capture the302,000 euros) top prize at the US Open tuneup event on the Washington hardcourts. | AP

Kevin Anderson, of South Africa, returns the ball to Alexander Zverev, of Germany, during the finals of the Citi Open tennis tournament. | AP

Alexander Zverev, left, of Germany, shakes hands with Kevin Anderson, right, of South Africa, after the Citi Open tennis tournament. | AP

Alexander Zverev, of Germany, pumps his fist to the crowd as he celebrates his win over Kevin Anderson, of South Africa, in the finals of the Citi Open tennis tournament. | AP

Alexander Zverev, of Germany, poses with the trophy after he defeated Kevin Anderson, of South Africa, to win the Citi Open tennis tournament. | AP

Ekaterina Makarova, of Russia, returns the ball during the finals of the Citi Open tennis tournament against Julia Goerges, of Germany, in Washington. | AP

Julia Goerges, of Germany, returns the ball during the finals of the Citi Open tennis tournament against Ekaterina Makarova, of Russia in Washington. | AP

Ekaterina Makarova reacts during the finals of the Citi Open tennis tournament against Julia Goerges. | AP

Julia Goerges reacts during the finals of the Citi Open tennis tournament against Ekaterina Makarova. | AP

Ekaterina Makarova, left, of Russia, shakes hands with Julia Goerges, right, of Germany, after the finals of the Citi Open tennis tournament. | AP

Ekaterina Makarova, of Russia, poses with the trophy after her victory over Julia Goerges, of Germany, in the finals of the Citi Open tennis tournament. | AP