Australian Open: Roger Federer Celebrates 300th Grandslam Win

Meanwhile, Dimitrov, who is seeded 27th and the current World No. 28, beat Italy's Paolo Lorenzi, 6-3 7-6 (6) 6-3 and Argentina's Marco Trungelliti, 6-3 4-6 6-2 7-5 in the first two rounds to set up the huge match-up against Federer.

The 17-time Grand Slam champion celebrated the milestone after seeing off Grigor Dimitrov in four sets to reach the fourth round of the tournament Down Under.

"It's very exciting, I must tell you", said the Swiss superstar Federer. “It was a big deal for me.”Federer is now 67 wins ahead of No. 2 and long-retired Jimmy Connors in terms of Grand Slam singles wins, so the mark is safe for a while.“It’s not something I ever aimed for but when it happens, it’s very special, ” he said. Yeah, you look deeper into it, I guess, where it's all happened and how. "So it's very nice, I'm very happy". "But certainly I must be pleased with a straight-sets win because both sets, especially the third, could have gone a different way", said Djokovic. “It was a great test. It was a physical match. But the real relevance of the 300th win is that it edges him closer - into the quarter finals now against Belgian David Goffin - to claim his 18th here.

Sadly for Dimitrov, that would be as good as it would get and an injury timeout at the end of the second set seemed to merely hammer the first nail into his coffin.

Seppi was the man who upended Roger Federer in the third round here a year ago, so he knew the Italian had previous in the giant-killing game.

"It's not only about what you see on the stage but backstage that prepares you for that so you don't get into the crisis, physical crisis, like cramps and so forth that I see many players get into because they don't prepare themselves well". A set and then a couple of break points early in the second.

The Bulgarian has featured in six ATP Tour-level singles finals (winning four ) since finishing as a runner-up to Andy Murray in the Brisbane International in January, 2013, and has recorded 10 separate victories against players ranked inside the world's top-10 since 2012; a list which includes Andy Murray, Novak Djokovic and Stan Wawrinka.

"I think slowly the pieces are coming together", he added.

But it wasn't an entirely convincing display from the four-time Australian Open victor who committed an uncharacteristic 55 unforced errors, much more than Dimitrov's 44.

"(That) didn't come automatically, I had to push myself, remind myself what to do", Federer said.

At times the tennis produced by the wonderful Roger Federer and Grigor Dimitrov was enough to have a sparse crowd inside the Rod Laver Arena spellbound.

After beating Eugenie Bouchard on Wednesday, No. 4-seed Agnieszka Radwanska looks to continue her consistency and form against Monica Puig, who saved five match points and survived Kristyna Pliskova's record 31 aces to advance.

During the day session on Rod Laver, No. 12-seed Belinda Bencic will take on Ukraine's Kateryna Bondarenko, who upset No. 23-seed Svetlana Kuznetsova in the second round.

"I'm out here to perform the best way I can, and hopefully..."

North Korea claims it arrested American university students for anti-state acts
In 2014, North Korea released three Americans it was holding in detention - Matthew Todd Miller, Kenneth Bae and Jeffrey Fowle. Kasich said North Korea should either provide evidence of alleged anti-state activities or immediately release Warmbier.