Lennox Lewis vs. Hasim Rahman.

Lennox Lewis vs. Hasim Rahman, billed as "Thunder in Africa", was a heavyweight professional boxing match contested between unified WBC, IBF, IBO, and lineal champion Lennox Lewis, and Hasim Rahman. The bout took place on 22 April 2001 in Brakpan, South Africa. Rahman, who was a 20–1 underdog, won by knockout in the fifth round. It was one of the biggest upsets in boxing history.