In Brownlee's first collegiate season in 2019, he played in just one game notching one tackle.[6] In week eight of the 2020 season, Brownlee recorded his first career interception versus NC State.[7] Brownlee finished the 2020 season with 26 tackles with two being for a loss, a sack, a pass deflection, and an interception.[8] In week eight of the 2021 season, Brownlee intercepted a pass which he returned 70 yards for a touchdown, as he helped Florida State rout UMass.[9] Brownlee finished the 2021 season notching 51 tackles with two being for a loss, three pass deflections, two interceptions, a forced fumble, and a touchdown.[10] After the conclusion of the 2021 season, Brownlee decided to enter the NCAA transfer portal.[11][12]
Brownlee finished his career at Florida State playing in 24 games with 15 starts, where he totaled 78 tackles, seven pass deflections, three interceptions, and a forced fumble.[13]
Louisville
Brownlee decided to transfer to play for the Louisville Cardinals.[14][15] In Brownlee's first season with Louisville in 2022, he posted 66 tackles with two and a half being for a loss, 12 pass deflections and two interceptions.[16] In the 2023 season, Brownlee missed three games with a foot injury, but he still notched 30 tackles, six pass deflections, an interception and a fumble recovery.[17] After the conclusion of the 2023 season, Brownlee declared for the 2024 NFL draft.[18][19]
The Titans selected Brownlee with the 146th pick in the fifth round of the 2024 NFL draft.[22] Originally in possession of the Philadelphia Eagles, the Titans received the 146th pick from the Eagles after trading safety Kevin Byard for Terrell Edmunds.
Brownlee made his first career start during Week 4 on September 30, moving into a starting position after Chidobe Awuzie was placed on injured reserve. He recorded 5 tackles in a 31-12 win against the Miami Dolphins.[23]