7. Dale Steyn (South Africa)- 55 Wickets:

Currently the best fast bowler in world cricket Dale Steyn is a nightmare of batsmen, he is a deadly mixture of lethal pace and swing bowling. In his career span of 2007-2014 Steyn has played 38 matches and taken 55 wickets with an economy of 6.45, he is currently on the seventh place in the list.