"I really didn't felt quite prepared," former world No. 1 said.
World No. 1 Ash Barty skipped New York, but will be back in Paris to defend her crown.
The Czech suffered a tough loss on Day 3 in New York, but scored some big hits in press.
They are suite neighbors at the US Open and each has a lot of respect for the other.
The Argentinean is angry that the tournament didn't try to do more to help him out of a tough situation.
Benoit Paire isn't playing the US Open, but he's emerged as one of the biggest stories.
The presence of one "fan" at his match was "quite weird" for former No. 1.
