Selected in the fifth round (157th overall) of the 2022 NFL Draft by the Buccaneers.
Appeared in 13 games, making three starts, in 2022. Finished with 17 tackles and one pass defensed. Added seven special teams tackles, tied for second-most on the team.
Was inactive for Weeks 1-4.
Appeared in a reserve capacity and on special teams in Week 5 vs. Atlanta, recording his first career tackle. Also added one tackle on special teams.
Appeareed in a reserve capacity and on special teams in Week 6 at Pittsburgh, recording one tackle on special teams.
Made his first career start in Week 7 at Carolina, finishing with four tackles.
Started at cornerback in Week 8 vs. Baltimore, tallying a then-season-high five tackles and his first career pass defensed.
Appeared in a reserve capacity and on special teams in Week 9 vs. L.A. Rams. Recorded two special teams tackles.
Played six snaps on special teams in Week 10 vs. Seattle before leaving with injury.
Tallied one tackle in Week 12 at Cleveland. Also appeared on special teams.
Started at corner in Week 13 vs. New Orleans, tallying a season-high-tying five tackles.
Finished with one tackle in 24 defensive snaps before leaving with injury in Week 14 at San Francisco.
Appeared on special teams in Week 15 vs. Cincinnati.
Was tied for the team-lead with 27 special teams snaps in Week 16 at Arizona. Finished with one special teams tackle.
Led Tampa Bay with two special teams tackles across 22 special teams snaps in Week 17 vs. Carolina.
Played a team-high 82 snaps between offense (61) and special teams (21) in Week 18 at Atlanta. Recorded one tackle.
Played in 56 games, making 52 starts, over five seasons at Sam Houston State (2017-21), recording 145 tackles (10 for loss), 54 passes defensed, 13 interceptions and six forced fumbles over his collegiate career.
Named third-team All-America by the Associated Press in his senior season in 2021, in addition to being named second-team All-America by Phil Steele and first-team All-WAC.
Inivted to play in the Reese's Senior Bowl and the the East West Shrine Bowl.
During his fifth and final season in 2021, McCollum produced 50 tackles, eight passes defensed, three interceptions and one blocked kick.
Earned first-team All-Southland honors in his true senior season (2020/21), appearing in 10 games and recording 46 tackles, seven passes defensed, two forced fumbles and one interception.
Received second-team All-Southland recognition in 2019, posting 23 tackles, 11 passes defensed, three interceptions and two forced fumbles in nine games played.
Garnered first-team All-Southland honors in just his second season at Sam Houston State (2018), starting all 11 games and finishing the season with 44 tackles, 11 passes defensed, three interceptions and two forced fumbles.
Played in 14 games as a true freshman, starting 10, intercepting three passes to become the first Sam Houston freshman with three-or-more picks in a season since 1973. McCollum added 42 tackles, a career-best 17 passes defensed and 1.0 sack.
Attended Ball High School (Galveston, Texas), where he was a team captain, team MVP and all-county performer. Ball High School is also the alma mater of Tampa Bay's all-time leading receiver, Mike Evans.