Fanzone played in a dozen games for the Cubs during the 1971 season, batting .186 with eight hits over 43 at-bats with a couple of homers and five runs batted in.
He originally had his first taste of the Big Leagues in 1970 after coming up and playing in 10 games with the Boston Red Sox, for whom he batted an even .200 with three hits in 15 at-bats.
He would go on to play through the 1974 season, all with the Cubs, generally as a man off the bench, filing in at third, first and even second base and batting around .240 combined over those last three seasons.
All told, he would finish his five-year career with a .224 batting average, collecting 132 hits in 588 at-bats over 237 lifetime games, spanning 1970 and 1974.