Marcell Harris

Harris was selected by the San Francisco 49ers in the sixth round (184th overall) of the 2018 NFL draft.^[2] On September 3, 2018, Harris was placed on injured reserve.^[3] He was activated off injured reserve to the active roster on November 1, 2018.^[4] In Week 16 against the Chicago Bears, Harris made a late hit on Mitchell Trubisky. As a result, he was fined $10,026 six days later.

On August 31, 2019, Harris was waived by the 49ers and was signed to the practice squad the next day.^[5][6] He was promoted to the active roster on October 3, 2019.^[7]

During Week 13 against the Baltimore Ravens, Harris forced a fumble on quarterback Lamar Jackson and recovered the football during a narrow 20–17 road loss.^[8] The 49ers reached Super Bowl LIV, but lost 31–20 to the Kansas City Chiefs.

Harris signed a one-year contract extension with the 49ers on March 5, 2021.^[9]

At the beginning of the 2021 NFL season, it was reported that Harris was making the switch from strong safety to linebacker.^[10]

On April 25, 2022, Harris signed with the New York Jets.^[11] Harris was released during final roster cuts on August 30.^[12] He re–signed with the Jets on September 1.^[13] He was released on November 24 and re-signed to the practice squad.^[14]

On November 21, 2023, Harris was signed to the Houston Texans practice squad.^[15] He was not signed to a reserve/future contract after the season and thus became a free agent when his practice squad contract expired.^[16]