Keep up with all the round of 16 action from the Cincinnati Masters with the Tennis Now Live Blog.
A classic response from the German produces a hilarious moment.
All the action from the Western and Southern Open, in one convenient blog!
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.
