Newport finalist Jenson Brooksby topped No. 53 Frances Tiafoe 7-6(4), 7-5 in Washington, DC for the biggest win of his career.
"I'm dealing with problems like we all are. I feel like it affected me a little bit today," said Nick Kyrgios after opening-exit in Washington, DC.
Felix Auger-Aliassime lost his Olympic opener, but learned from the experience.
A trio of big stars will sit out next week's Omnium Banque Nationale in Montreal.
The two-time champion and the rising American will joined the star-studded draw in the last event prior to the US Open.
Rafa Nadal shows full support for gymnastics star Simone Biles in a CBS interview.
Moroccan player Simohamed Hirs has been banned for life from the sport, following investigations into multiple incidents of match fixing.
