Rafa Nadal is likely to end the year without a grand slam singles title for the first time since his debut French Open crown in 2005 following his shock Wimbledon exit yesterday, his uncle and coach Toni has conceded.

Nadal, a 14-times grand slam champion who won Wimbledon in 2008 and 2010, was dumped out by German qualifier Dustin Brown in the second round, the Spaniard’s fourth reverse to a player ranked 100th or lower at the All England Club since 2011.

Nadal, 29, has struggled since being sidelined by injury and illness last year and has only two relatively modest titles to his name in 2015 – Stuttgart and Buenos Aires – with September’s US Open the only major left on the calendar.

“I want to think that it can be done,” Toni Nadal said when asked about his nephew’s chances at Flushing Meadows.

“Right now, I am realistic and the chances we have are probably thin, because we have not been able to play well for a long time,” he added.

“So it’s difficult to think that we will do so at the US Open but I think that it will happen at some point. I am confident he will get his game back.

“He has been playing at a very good level for a long time and there is no clear reason for him to stop being good.

“The opponent scarcely gave him room to get into a rhythm... but at key moments he made too many errors which were not difficult shots,” he added.