Video: Yuvraj Singh's six sixes to Stuart Broad
On 19th September 2007, Yuvraj Singh hammered six sixes in an over by Stuart Board in the inaugural World T20, leaving the English stunned.
Yuvraj was the first to achieve the feat in T20 internationals, and second in international cricket, after Herschelle Gibbs six sixes against Netherlands in the 50-over World Cup earlier that year.
Sir Gary Sobers was the first cricketer to hit six sixes in an over, followed by Ravi Shastri in a domestic match.