Vidic has a special affinity with his central defensive partner Ferdinand.
He said: "Rio and I have a great understanding on the pitch. I also have to say Mladen Krstajic and I had a great relationship for the Serbian national team.
"I am not being disrespectful to the other players I've played with, but the results I've achieved with those two players shows what a good understanding we have. They have both helped me improve as a player."