mauro got about as late a season call-up as a man could get when the parent chicago cubs brought him to wrigley field on october 1, 1948. he appeared in three games, picking up two base hits in five at-bats, his first big league hit being an inside-the-park homer off murry dickson of the st. louis cardinals. he spent two full seasons with the cubs, hitting .227 in 1950 but only .172 in 1951. the cubbies traded him to the brooklyn dodgers for toby atwell in december, who sent the 25-year-old mauro to the international league for his career year, hitting .327 with eleven homers in 140 games for the montreal royals in 1952.