How Sachin Tendulkar Got His Nick Name as Rafi

Sachin Tendulkar as Rafi

The Mohammad Rafi connection - Mohammad Rafi happens to be Sachin's favorite singer. 
One day then Indian captain Mohammad Azharuddin heard Sachin singing while taking shower.
He was quite impressed with it and complemented Sachin about it saying, "Kya baat hai Mohammad Rafi sahab." (Wonderful!! Mohammad Rafi). After that day Azharuddin always called him Rafi.
This was told by former Indian cricket team physiotherapist Ali Irani.