Rafael Nadal insisted he has no intentions of quitting tennis despite slumping to a fourth successive Wimbledon humiliation.


The 29-year-old Spaniard, who was Wimbledon champion in 2008 and 2010 and runner-up in 2006, 2007 and 2011, was humbled 7-5, 3-6, 6-4, 6-4 by dreadlocked German Dustin Brown, the world number 102, in the second round.


Brown, who once was so short of cash that he travelled to tournaments in a camper van, hit 13 aces and 58 winners on the back of a free-hitting, serve-and-volley barrage.


It was 29-year-old Nadal's first ever defeat to a qualifier at a Grand Slam and came in the aftermath of losing his French Open crown where he had been champion nine times.


Thursday's loss followed his 2012 second round exit to world 100 Lukas Rosol, a first round beating by the 135-ranked Steve Darcis in 2013 and last year's fourth round defeat to Nick Kyrgios, who was at 144.