Two-time champion Rafa Nadal's appalling recent run at Wimbledon continued as he crashed out in the second round after being out-muscled and out-thought in four sets by an inspired Dustin Brown of Germany.

The Spaniard, who has slipped down the sport's pecking order and was seeded 10 after a year of injury and below-par performances, fell 7-5, 3-6, 6-4, 6-4 as Brown, ranked 102 in the world, unleashed a barrage of thunderous serves and ground strokes.

Brown, who had beaten Nadal in the pair's only other meeting last year, looked to rush the Spaniard from the start, blasting winners at every opportunity and squeezing Nadal at the net to cut off his options in an unorthodox style that had the Wimbledon crowd in raptures.

Former world number one Nadal, famed for his athleticism, could not find his rhythm among Brown's variety of play, picking up the second set with a flash of his familiar passing shots and a helpful, albeit momentary, easing in his 30-year old opponent's arrow like attack.

For 14-time Grand Slam winner Nadal, it was another tough time at the All England Club, having suffered shock early defeats to Lukas Rosol of the Czech Republic, Belgium's Steve Darcis and Australian Nick Kyrgious - ranked outside the top 100 - in the last three years.

Since finishing runner-up to Novak Djokovic in the 2011 final, he has now failed to advance past the last 16 of the grasscourt major.

Federer is a seven-time Wimbledon champion [Getty Images]

Earlier, Roger Federer's effortless stroll through the early stages at Wimbledon continued as he brought out the party tricks in a 6-4, 6-2, 6-2 victory over Sam Querrey to reach the third round.

Once the Swiss seven-time champion had tamed the American's hefty serve, he cruised through the match, even managing to lob his statuesque opponent with a shot through his legs in the second set.

Querrey began with a tenacious effort to peg Federer back, but the Swiss, chasing an 18th grand slam title, broke in the ninth game of the first set and never looked back.

He broke twice more in each of the second and third sets and finished it off in an hour and 21 minutes to set up a clash with Australia's Sam Groth.

Murray through

Andy Murray was at his imperious best as he jettisoned Dutchman Robin Haase 6-1, 6-1, 6-4.

The 2013 champion showed none of chinks that led him to being broken three times in a set on Tuesday, appearing to be on auto pilot as he bullied Haas into submission on a humid Court One.

The Scot dropped only one point on serve in the first set, saved the only break point he faced in the second and finished off his 78th-ranked opponent with a flourish.

The third seed will next face either Italian Andreas Seppi or rising Croatian talent Borna Coric.

Results (selected):

Pablo Andujar (Spain) beat Lukas Rosol (Czech Republic) 6-4 1-6 4-6 7-6(4) 6-4
Dustin Brown (Germany) beat 10-Rafa Nadal (Spain) 7-5 3-6 6-4 6-4
22-Viktor Troicki (Serbia) beat Aljaz Bedene (Britain) 6-4 3-6 6-2 6-4
18-Gael Monfils (France) beat Adrian Mannarino (France) 7-6(5) 6-3 7-5
6-Tomas Berdych (Czech Republic) beat Nicolas Mahut (France) 6-1 6-4 6-4
13-Jo-Wilfried Tsonga (France) beat Albert Ramos (Spain) 6-3 6-4 6-4
2-Roger Federer (Switzerland) beat Sam Querrey (U.S.) 6-4 6-2 6-2
12-Gilles Simon (France) beat Blaz Kavcic (Slovenia) 6-1 6-1 6-7(5) 6-1
3-Andy Murray (Britain) beat Robin Haase (Netherlands) 6-1 6-1 6-4

Source: Reuters