Thomas, 26, originally entered the NFL as a sixth-round draft pick (186th overall) of the Chicago Bears in the 2022 NFL Draft out of San Diego State. The 6-foot-5, 305-pounder, began his rookie season on the practice squad before being signed by the Los Angeles Rams to the 53-man roster from the Chicago practice squad on Nov. 18, 2022. He saw action in one game in 2022. Thomas spent part of the 2023 season on the practice squad and the 53-man roster for the Rams and saw action in two games. He was released by the Rams on Aug. 27, 2024.