5 most economical 4-over T20 spells Mohammad Irfan went past 

#1 Mitchell Johnson (3/3 against Melbourne Stars)

Johnson destroyed Melbourne's plan of winning the title

Cometh the hour, cometh the man. Australia's Mitchell Johnson delivered for the Perth Scorchers on the big occasion the Big Bash semi-finals.

Johnson conceded just three runs in his quota of four overs and picked up three crucial wickets, breaking the backbone of the Melbourne batting line up. This was the fifth defeat for the Melbourne Stars in six finals and Johnson was the chief conspirator.

His overs included a double wicket maiden, and given the platform in which this spell was produced in a must win game, under huge pressure, Johnson was rightly adjudged the Player of the Match.