Notes: Troubled former No. 1 Dinara Safina floats seedlessly in the draw, starting against China’s Xinyun Han, then a possible meeting with (5) Safarova; (8) Jovanovski a tough start against Tanasugarn, and (1) Schiavone vs. Dokic; last year Kleybanova beat the now-retired Elena Dementieva to win her first WTA title in Kuala Lumpur.

With World No. 1 Caroline Wozniacki watching from his player box, Murray started slowly, losing the first set with 16 unforced errors off his backhand side alone. In the second set Murray scraped out the tiebreak after saving three break points in the sixth game of the set and held off a set point at 4-5. The third set was all Murray as he raced to a 5-1 lead before closing it out, and in the fourth and final set, Murray dominated the tiebreak 7-2.

Down two sets to none, Mr. Nice Federer disappeared, and Hardcore Roger reared his head. Federer appeared to talk to Djokovic during the Serb’s service preparation as Djokovic went into his extensive pre-service ball bouncing. Federer glared at Djokovic’s player box and complained to the chair umpire about excessive cheering, talking and noise. After losing the second set, perhaps to get in the Serb’s head, Federer took a rare bathroom break.

Who will win the Roger Federer v. Novak Djokovic men’s semifinal?

“I felt a little bit tired and heavy out there today, but I fought well and stayed really focused, and tried not to lose too much energy on getting frustrated and things like that,” Clijsters said. “Everything has to be better. The serving, the returning, the unforced errors… everything. But I’m in the semifinals and I don’t feel I’ve played my best tennis, so that’s a good thing.”

An injury hit Rafael Nadal at the Australian Open.

Rafael Nadal speaking to the press after losing to David Ferrer in the Australian Open quarterfinals.

The quarterfinals begin at the Australian Open with Federer v. Wawrinka and Berdych v. Djokovic.

Sean Randall breaks down the Australian Open fourth round.

“I think it was a very good week,” Nalbandian said. “Sometimes you win, sometimes you lose, sometimes you play good and lose, sometimes you play bad and win. Sport is like that. Today I lost. I will try to play better every day.”