Wozniacki, in news after split with golfer Rory, reaches first Slam quarters in over 2 years.
No.4 seed David Ferrer knocked out after 6-3, 3-6, 6-1, 6-3 loss to Gilles Simon in the third round.
Ivanovic and Radwanska, the former No.1 and No.2 respectively, crash out in the second round to unfancied rivals.
Bellis, 15, beats 12th seed Cibulkova, becomes youngest to win a match at US Open since Kournikova in 1996.
In the men’s doubles event, India will be represented by Leander Paes and Davis Cupper Rohan Bopanna.
wMurray said, players will seek out partners whose styles resemble those of scheduled opponents.
The Serb could meet either Andy Murray or Jo-Wilfried Tsonga in the quarter-finals.
Nadal is 44-8 with four titles in 2014, including his record ninth French Open trophy.
The injury will delay Nadal’s start to the North American hardcourt season and his preparations for the August 25-September 8 US Open.
Tied 23rd in a Major is step forward and the next step is to try and get myself more often into Majors.
I feel like I’ve played rock solid golf the last two days with a good chance to finish in the top 10.
Pinehurst is a great course and has hosted the US Open twice.
For 32-year-old Shiv Kapur, it took close to a decade to fullfill one of his major goals — qualifying for the US Open.
Chiudinelli, currently ranked 168, has just come off a surprise loss to Ze Zhang (ranked 229) in the second round.
At the Australian Open, new face-offs, and old battles being fought anew.