Yuvraj Singh became the second batsman, after Herschelle Gibbs, to hit six sixes in an over in international cricket. The occasion was the World Twenty20 encounter against England, the venue Kingsmead, Durban, and the bowler under the withering onslaught was Stuart Broad. Yuvraj, spurred by comments from Andrew Flintoff before the penultimate over, launched the first ball over cow corner; the second – measured at 111 yards – disappeared over backward square leg; the third and fourth rocketed over extra cover and point; the fifth flew over midwicket; and the sixth six landed in the stands at long-on. Yuvraj’s 12-ball half-century is a record in all forms of international cricket.
South Africa’s Herschelle Gibbs became the first man in the history of international cricket to score six sixes in an over. The unfortunate bowler was Netherlands’ Daan van Bunge, who finished with figures of 4-0-56-0 after the carnage. Karthik Parimal looks back at that eventful day of the 2007 World Cup.
Ref : http://www.espncricinfo.com/magazine/content/story/149658.html