The five-time major champion is the fourth Czech to rise to No.1 in doubles.
The French duo claims their 6th Masters 1000 title.
Wrist injury knocks 2011 US Open champion out of Flushing Meadows.
The former World No.1 has called it a career at 25.
Former world No. 2 receives wild card into New Haven qualifying.
Meet Riki, a primate prime-time tennis player.
"The only way I can play the US Open this year is if I leave Leo behind in California, which I'm not willing to do," says former No. 1.
