Boca Juniors
Varallo moved to Boca Juniors for the start of the 1931 season (the first professional season in Argentina) for a fee of approximately $8000.
He continued to play for the club for the next nine years during which time he won the Argentine Primera División three times, in 1931, 1934 and 1935, as well as coming runner up in 1933, when he was the top goalscorer in the league and of South America scoring 34 goals.
In his nine years at Boca Juniors he became the club's top goal-scorer of the professional era, with 180 goals in 210 League games (scoring average 0.85 per game), a record that stood until 2008 when it was broken by Martín Palermo.
During the 1930s Varallo formed strong partnerships with teammates Roberto Cherro and Delfín Benítez Cáceres, who both also scored over 100 goals for the club. In 1938, he was only able to play one game because of a bad knee injury and, although he played more frequently the next year, was forced to retire in 1940, aged 30.
Read more about this topic: Francisco Varallo