Muhammad Ali fights Leon Spinks in 1978

Boxer Muhammad Ali (left) fights Leon Spinks on February 15, 1978. This was the famous upset where Spinks, a 10-1 underdog, beat Ali to become the heavyweight champion. "Muhammad Ali is the greatest, but today i'm the latest" said Spinks after the match. Ali got the last laugh, beating Spinks in a rematch later that year.