César Luis Menotti (Spanish pronunciation: [ˈsesaɾ ˈlwis meˈnoti]; born 5 November 1938), known as El Flaco ("Slim"), is an Argentine former football manager and player who won the 1978 FIFA World Cup as the head coach of the Argentina national team. During his playing days, he played as a striker, most notably for Argentine clubs Rosario Central and Boca Juniors.