Only 65 ranking points separate No. 22 Isner and No. 23 Johnson.
"For the sport of tennis (it) is very important to be in the Olympics," said Rafael Nadal.
The 16-time Grand Slam champions worked with David MacPherson for 11 years.
The 2009 US Open champion receives Flushing Meadows main-draw wild card.
"Overall I think (Goran Ivanisevic is) the guy I was looking for,” Berdych said.
Andrea Hlavackova was dealt a harsh blow in her Olympic semifinal--but recovered like a champ.
Sania's out, CoCo's in, but could Timea be Martina's next partner?
