Flavio Tosi was born in Beverly, Mass on April 30, 1912 and attended Beverly High School. He played  college football at Boston College where he was the tam's leading receiver. On defense, he had 10 sacks in a game against Holy Cross and was named as an All-American his senior year.

Flavio played as a two-way end for the Boston Redskins from 1934 thru 1936. He caught 17 passes for 265 yards in his career and in 1936 he returned a fumble for a touchdown.

After his pro career Flavio coached the Providence Friars and went on to be an executive at General Electric. He was instrumental in providing Beverly Hospital's first dialysis machine through the GE Good Neighbor Fund.

Flavio is a member of the Boston College Varsity Club Hall of Fame.

Flavio Tosi battled cancer for 17 years and passed away n December 18, 1994, at age 82, in Beverly, Mass..