Playing successive five-setters hasn't dampened Wimbledon winner's outlook.
Shelby Rogers wept tears of joy holding off No. 25 seed in three hours, 31 minutes.
The Great Dane airs out frustration on US Open scheduling issues
The Pole is the best in the women's game at this shot.
The Swiss didn't want to brave the traffic and stayed in Manhattan on Wednesday for practice.
"There are players out there that are more dedicated, that strive to get better every day...I'm not that guy,” Kyrgios said.
Former Wimbledon finalist falls in US Open first round for second straight year.
