[6] Weisz played club football as a left winger in Hungary for Törekvés SE,[2] in Czechoslovakia for Makabi Brno, and in Italy for Alessandria and Inter Milan.

[1] After retiring as a player in 1926, Weisz became an assistant coach at Alessandria before moving to Inter Milan, where at the age of 34 he won one championship in the 1929–1930 season.

He also coached Bari, Novara and Bologna, where he won two league titles (in 1936 and 1937) before he was forced to flee Italy with his wife and two children following the enactment of the Italian Racial Laws.

[7] Four years later he was arrested by the SS and murdered by the Nazis at Auschwitz concentration camp, with his family of four (including his wife Elena, his son Roberto, and his daughter Clara) when they were gassed immediately upon arriving at Birkenau.

[10][6] In January 2020, Chelsea unveiled a mural by Solomon Souza on an outside wall of the West Stand at Stamford Bridge.