(CNN) -- Rafael Nadal and Roger Federer remain on course for a semifinal clash at the Australian Open after both men recorded straight sets victories in Melbourne on Sunday. Nadal, the 2009 champion, defeated fellow Spaniard Feliciano Lopez 6-4 6-4 6-2 while 16-time grand slam winner Federer breezed past Australian teenager Bernard Tomic 6-4 6-2 6-2. Federer, the world number three, will now face Juan Martin Del Potro after the Argentinean enjoyed a comfortable 6-4 6-2 6-1 victory over German Philipp Kohlschreiber. Nadal will meet Tomas Berdych in the last eight as the Czech overcame a tough encounter with Spanish tenth seed Nicolas Almagro to win 4-6 7-6 7-6 7-6.
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Roger Federer and Rafael Nadal both cruise into the Australian Open quarterfinals
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Number three seed Federer dispatches Australian Bernard Tomic in straight sets
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Federer will now face Juan Martin Del Potro after Argentine beat Philipp Kohlschreiber
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Nadal beats Feliciano Lopez in straight sets to book clash with Tomas Berdych
Federer rarely broke sweat against @placeholder, breaking his opponent six times in a victory that took him just one hour and 44 minutes to record.
"@placeholder is the best tennis player of the history, and of course he's the favorite," he said.