I wonder why he doesn't retire, pick up a new job in a office, and spend all his time on a tennis board waiting to go back home to watch some tennis...
By the way, you guy could also recognize that he has very few shameful loss in slams. Here are his last opponent in each slams since 2005.
2006: Chela, Nadal, Baghdatis, Roddick
2007: Gonzales, Nadal, Djokovic, Callieri
2008: Djokovic, Ferrer, Federer, -
2009: Gonzales, Nadal, Roddick, Federer
2010: Federer, Nadal, Djokovic, Matthieu
2011: Nalbandian, - , Söderling, -
2012: Djokovic, Kavcic, Tsonga, Ferrer
The draw were never kind to him.