Bo Diaz was signed by the Red Sox in 1970 and played for the minor league Pawtucket Red Sox, founded in 1970 and the only pro team in Rhode Island , for seven years
In December 1970, Diaz was signed by Boston Red Sox as an amateur free agent. He spent seven seasons playing in the Red Sox minor league system. While playing for the Pawtucket Red Sox in 1977, he posted a .263 batting average, with 14 doubles, 7 home runs, and 54 runs batted in (RBI). The Pawtucket Red Sox (known colloquially as the PawSox) were a professional minor league baseball team based in Pawtucket, Rhode Island. They played their home games at McCoy Stadium in Pawtucket, as the only professional baseball team in Rhode Island. This earned Diaz his big league call-up on September 6, 1977 versus the Blue Jays, at Toronto. 
