Roger had 2 seasons of similar level before and 1 after. 2006 wasn't a fluke year.
Djokovic however had a 3 slam season and only won1 the year after. So I can see how 2011 was the odd year for djokovic.
I told ya Djokertards either started to watch tennis only from 2011, or they have amnesia of any tennis pre 2011