Well, just like you even I haven’t seen him doing any mischievous acts nor on the field neither outside the fields. He is one of the finest cricketer who shows great respect towards the game and towards his team mate. I don’t think M.S Dhoni needs the help of sledging a player to defend him because his appearance on the ground is sufficient for the opposition.
Well, I surfed a lot for finding a video on YouTube in which M.S Dhoni is sledging but I didn’t found such video in which he is doing any activity which is against the sportsman spirit.
However, I have got this: