Yuvraj Singh became the first player in Twenty20 history to hit six sixes in an over in India's match against England on 19 September 2009. Stuart Broad was the luckless bowler in the World Twenty20 Super Eights match.
The devastating barrage from Yuvraj, 25, helped him reach his half-century off just 12 balls - the fastest 50 ever in international cricket.
Sir Gary Sobers was the first to hit six sixes in an over in first-class cricket while Herschelle Gibbs managed it in a one-day international.
West Indies legend Sobers made history while playing for Nottinghamshire against Glamorgan's Malcolm Nash in Swansea in 1968.
Gibbs' landmark came against Netherlands bowler Daan van Bunge during a World Cup group match earlier this year.
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