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Roger Federer kisses his fourth Australian Open trophy in 2010.
World No. 6 Roger Federer has reached at least the semifinals of the last 10 Australian Open tournaments, epitomizing his amazing consistency and longevity at the top of the sport.
Now that Federer is outside of the top four in the rankings, he faces the risk of having to defeat a top player before the semifinals at the Open.
This year, Andy Murray is in his section of the draw. Murray defeated Federer in the semis last year down under and has had pretty good success against the Swiss Maestro in his career.
Federer has already reached the finals of an event this year (Brisbane) and will be looking to bounce back strong from a subpar 2013. He is playing with a bigger racket and a new coach (Stefan Edberg), and his motivation appears as strong as ever.
That being said, Murray is a big obstacle for his Aussie Open semifinal streak. The Brit no longer struggles on the biggest stages and has both the game and youth to give Federer all he can handle.
You can also no longer just book Federer into the quarterfinals of slams, like we could between 2005 and 2012. He has more bad days than he used to, as Father Time is something no one can defeat forever.