MELBOURNE, Jan 28: With a new Grand Slam champion crowned at the Australian Open, the vultures are circling over Roger Federer’s head.

The Swiss, though, is adamant that he is still the top man in world tennis.

The world rankings bear out the Swiss ace’s assertion but, make no mistake, there is a new pretender to his throne and a very credible one.

Not only did Novak Djokovic oust the world’s top-ranked player from the Australian Open semi-finals but on Sunday he took the Swiss champion’s crown.

It seems to sit comfortably on the amiable Serb’s head and Federer must now look beyond Rafael Nadal when he is searching for danger.

Djokovic certainly provides that.

While not quite kryptonite to Federer’s super-powers, Djokovic’s game does cause the Swiss problems.

His victory over Federer was no fluke. It was as hard-earned as it was comprehensive.

Not since Federer lost to Gustavo Kuerten in the 2004 French Open had he been beaten in straight sets at a Grand Slam.

Djokovic is as close to a brick wall as top-flight tennis gets. Metronomic in his rallying, he rarely makes an unforced error.

But he is no one-dimensional counter-puncher. Powerful off both wings he possesses a thunderous serve and a deft touch in the forecourt.

He is not short on confidence either.

“I’ve been working very hard in the past year and a half, so it’s paying off right now,” the Serb calmly told reporters after dumping Federer out in Melbourne.

“Obviously, everybody was trying to figure out the way they can win against Roger.

“I knew that I had to believe in myself in the first place, and I had to be positive on the court, not nervous, just to stay with him all the time, and be aggressive. That’s what I did.”

Djokovic says his emergence is good for the sport.

“I think the dominance of Federer and Nadal... was just amazing the last couple of years. So I think it’s great for... tennis lovers all around the world, to see something new.”

Federer, though, is quick to remind any doubters that he suffered a viral illness before the Open and that his crown as world’s best is not in danger.

“I’ll definitely reflect on what happened,” Federer said after his defeat to Djokovic.

“You know, considering my illness, I’m sort of happy with the result here.

“Of course, I’ve created a monster, so I know I need to always win every tournament. But semis is still pretty good.”—Reuters