Galeai signed with the Green Bay Packers as an undrafted free agent following the 2020 NFL draft on April 29, 2020.[1] He was waived during final roster cuts on September 5, 2020,[2] and was signed to the practice squad the next day.[3] He was elevated to the active roster on September 12 for the week 1 game against the Minnesota Vikings, and then reverted to the team's practice squad following the game.[4] On January 25, 2021, Galeai signed a reserve/futures contract with the Packers.[5]
On August 31, 2021, Packers released Galeai as part of their final roster cuts.[6] He was signed to the practice squad the next day.[7] He was promoted to the active roster on November 16 to replace an injured Whitney Mercilus.[8] On December 25, he recorded his first career sack on Baker Mayfield during a 24–22 win against the Cleveland Browns.
Galeai made the Packers' initial 53-man roster for the 2022 NFL season.[9] On October 15, 2022, he was placed on injured reserve.[10] He was released on December 27, 2022.[11]
BC Lions
On January 30, 2024, Galeai signed with the BC Lions.[12] He was released by the Lions on May 15, 2024.[13]