With 12 wickets so far, Zaheer Khan is the leading fast bowler at the World Cup and India skipper Mahendra Singh Dhoni's go-to man when the going gets tough for the hosts.

At the World Cup, where there have been constant question marks over the staying power of India's attack, Dhoni has turned to the burly left-armer whose mastery of the ball is matched by the ferocity of his character.