At Willian H.G. FitzGerald Tennis Center
Surface: Hardcourt outdoor
WASHINGTON (AP) _ Results Sunday from Citi Open at Willian H.G. FitzGerald Tennis Center (seedings in parentheses):
Jannik Sinner (5), Italy, def. Mackenzie McDonald, United States, 7-5, 4-6, 7-5.
Raven Klaasen, South Africa, and Ben Mclachlan (4), Japan, def. Michael Venus, New Zealand, and Neal Skupski (2), Britain, 7-6 (4), 6-4.