Complex sentence: Just "Justo" Fontaine (born 18 August 1933) is a retired French football player best known for being the record holder for most goals scored in a single edition of the FIFA World Cup, with 13 in six games in 1958.
Split into simpler sentences: Just "Justo" Fontaine (born 18 August 1933) is a retired French footballer. A prolific forward, he is best known for being the record holder for most goals scored in a single edition of the FIFA World Cup, with 13 in six games in 1958.