Latest on US Open: Safarova is next top women's seed to lose
ESPN's Pam Shriver came on court to talk to CoCo after her first set.
The world No. 9 has yet to name a new coach.
Nishikori had two match points but failed to put away Benoit Paire.
The world No. 10 underwent minor surgery on his right foot.
Kei Nishikori looked ready to take the next step in 2015. Why didn't he?
Will Serena make history? Breaking down the U.S. Open women's draw.
An under-the-radar Victoria Azarenka remains a threat at the U.S. Open.
Can the aggressive—and perhaps reckless—Roger Federer replicate his Cincy exploits in NYC?