Teen sensation Nick Kyrgios dumps out No 2 seed Rafael Nadal

Australian teenage sensation Nick Kyrgios dumped two-time champion and second seed Rafael Nadal out of Wimbledon to reach his first Grand Slam quarter-final.

The 19-year-old condemned Nadal to a 7-6 (7/5) 5-7 7-6 (7/5) 6-3 defeat, completing three miserable years at Wimbledon for the five-time finalist.

The Canberra native got the better of the 14-time Grand Slam champion and current world number one, to book a last-eight clash with Canada’s Milos Raonic.

Earlier, Roger Federer vanquished Tommy Robredo with a masterful straight-sets victory and exorcise memories of last summer's painful US Open defeat to the Spaniard.

The seven-time Wimbledon champion swept past Robredo 6-1 6-4 6-4 to reach his 12th All England Club quarter-final.

Back trouble bedevilled 17-time Grand Slam winner Federer in the second half of last year, leading to his second-round Wimbledon exit and a straight-sets, fourth-round loss to Robredo at Flushing Meadows.

He left Robredo with no chance of adding to his solitary victory over the Swiss grass specialist, however, blasting home in imperious fashion.

Federer is yet to drop a set in his latest bid to add an open-era record eighth Wimbledon crown to his crowded trophy cabinet.

Basel native Federer failed to reach a Grand Slam quarter-final for the first time in nine years with his second-round defeat to Sergiy Stakhovsky at Wimbledon last summer.

When Robredo dumped him out of the US Open to boot, most outside observers predicted a daunting route back to form for the stylish Swiss.

Teaming up with childhood hero Stefan Edberg and shrugging off those persistent back problems helped Federer reach the Australian Open semi-finals though.

The fourth seed underlined his resurgence with a clinical triumph over world number 22 Robredo, the 32-year-old Spaniard unable to cope with Federer’s pace.

Federer raced through the first set in just 21 minutes, perhaps mindful of Switzerland's late-afternoon World Cup second-round clash with Argentina.

The second major exchange lasted just 11 minutes longer, with Federer once again maintaining his dominance.

Robredo stiffened his resolve for one final assault at reverting the inevitable in the third set, but Federer claimed the crucial break in the seventh game.

Federer fended off a surprise break point when serving for the match, only to ease past that setback with typical assurance to convert his third match point.

Federer revealed his delight at securing his 12th Wimbledon quarter-final, but admitted the pressure will ramp up in SW19 from here on in.

“I was very happy: I was able to start off strong and kept the momentum all the way to the end,” he said.

“Tommy played better as the match went on so I’m really happy to come through in straight sets. I’m very pleased with the first week and getting to the quarters is very exciting.

“It feels great to be closer to the finish line than the start. All the things that need to be happening to go deep in this tournament are happening.

“The important thing is what’s happening on the court, not what the press or anyone else is saying. It’s about really being focused out there, I’m able to do that, and I’m healthy.

“It’s only the quarter-finals, though, and that’s where the tournament really starts ultimately.”