Was the pressure too much for Wozniacki, the clear favorite once Clijsters lost, who is still searching for a first Slam title?

“I didn’t have much in my mind,” Zvonareva said of facing down a match point. “I was just trying to focus one point at a time and fight like I did since the very first point. I got a little lucky and was able to turn the match around.”

Juan Martin Del Potro and Novak Djokovic will showdown on Friday.

Roger Federer made his annual trip to the Tennis Channel set on Monday.

“I had stomach problems at the start of the year,” said a crying Ivanovic in her post-match conference, going over her various illnesses and ailments in 2011. “But I felt healthy before Indian Wells, then hurt my stomach again at the Fed Cup. It’s been stop and go, it is very frustrating. It’s inflammation of the wrist but I didn’t suffer it playing, I woke up with the problem. The bone has slipped and has caused friction. I’m very upset.”

Rafael Nadal and Robin Soderling survive American upset bids.

Rafael Nadal went to five sets for the first time in his career at the French Open

“I feel relieved when I look at the score or the match after playing three tiebreaks in Madrid against him,” Federer said of his fellow 29 year old. “It’s definitely slower than Madrid. So I think Feliciano was maybe not getting the free points he was looking and hoping for. The important thing from my side was to be solid in my own serve, which I was all the way through from start to finish, and I thought I played a good match.”

Juan Martin Del Potro isn’t thinking about a match with Novak Djokovic like we all are.

Novak Djokovic won’t discuss his diet but he’s happy to talk about his streak.