[1] Thomas was named one of the Bulldogs' starting cornerbacks going into his sophomore year and recorded 48 tackles with three interceptions, including one returned for a touchdown.

[4] Thomas was signed by the Arizona Cardinals as an undrafted free agent on April 30, 2018, and waived by the team on September 1.

[4][8] Thomas made his NFL debut on September 9, 2018, during the Browns season opener against the Pittsburgh Steelers.

[11] Thomas played in all 16 of the Browns' games in 2019 with nine tackles and a fumble recovery and also returned ten kickoffs for 204 yards.

[13] In Week 1 of the 2020 season against the Baltimore Ravens, Thomas recorded his first career sack on Lamar Jackson during the 38–6 loss.