As far as I know, it's Mohammad Aamer from the Pakistani side. He's a left arm pace bowler, and he's only 17! He played in this years Champions Trophy and earlier this year in the World Cup. :)
The best young cricketer in the world is the Indian cricketer Virat Kohli.
He has led India to a number of wins and even captained the under 19 world cup for cricket and also won it. He is a young champ with a lot of self confidence. Virat is a great inspiration for the new generation. He is the best young cricketer ever.
Nitish Kumar of Canada at the age of 16.
Nitish Kumar (Canada) Born 21 May 1994
The youngest member of the 2011 Pakistani Cricket World Cup squad is Ahmed Shehzad.
Talha Jubair (Bangladesh) is the youngest player to play world cup cricket match. He was 17 years and 70 days in 2003 Cricket World Cup to play for Bangladesh
It is sachin Tendulkar.
Hasan Raza From Pakistan
James Thompson circa 1345