[2] Polk played in four games in the Golden Bears' COVID-19-shortened 2020 season and caught 17 passes for 183 yards and one touchdown.

[5] He was named a starter going into his first season with the team and led the Southeastern Conference with 105 receptions for 1,048 yards and nine touchdowns.

[6][7] Following the end of the season, he declared that he would forgo his remaining collegiate eligibility and enter the 2022 NFL draft.

[8] Polk was signed as a free agent out of college by the Baltimore Ravens in May 2022, after going undrafted.

[19] Following training camp, he made the team's opening day lineup where he played and started in his first professional game on June 9, 2024, against the BC Lions, where he had three receptions for 40 yards.

[20][21] He scored his first touchdown on June 28, 2024, against the Montreal Alouettes, on a 40-yard pass from Bryan Scott.