Complex sentence: Just "Justo" Fontaine (born 18 August 1933 in Marrakech, Morocco) is a former 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 1958.
Split into simpler sentences: Just "Justo" Fontaine (born 18 August 1933 in Marrakech, Morocco) is a former French football player. He holds the record for most goals scored in a single FIFA World Cup finals tournament, with 13 in 1958.