Monaco transferred for a third time in 1984 to play with the South Carolina Gamecocks.[7] He was regarded as one of the strongest players on the team, being able to squat a school-record 725 pounds.[2] However, he only saw limited action as a reserve linebacker and totaled 24 tackles in two seasons.[8]
Professional career
Monaco went unselected in the 1986 NFL draft and afterwards signed with the St. Louis Cardinals as an undrafted free agent, joining his brother Rob.[8][9] He was described in a headline in The Columbia Record as the "longest of the NFL long shots" due to having seen little action at South Carolina and having not been selected in the NFL Draft; nonetheless, he ultimately was one of 11 rookies to make the team's final roster.[8] He appeared in 15 games for the Cardinals in his first season and was a starter for two games when E. J. Junior was injured.[1][10] He was released prior to the 1987 season.[11]
When the NFLPA went on strike mid-season in 1987, Monaco was signed as a replacement player by the Green Bay Packers and was named starter.[12] He appeared in two games, one as a starter, for the Packers, before being released at the end of the strike.[1][13] In March 1988, he signed with the Kansas City Chiefs.[14] He was released on August 29 that year.[15] He ended his career with 17 games played, three as a starter, and recorded one fumble recovery.[1]