Johnson ran for 143 yards, a touchdown, and a 99-yard kickoff return in a game against American Heritage School that included Sony Michel and Isaiah McKenzie.

[6] After going undrafted in the 2018 NFL draft, Johnson was invited to the New Orleans Saints rookie minicamp but was not signed.

[9] Johnson signed with the Orlando Apollos of the Alliance of American Football for its inaugural 2019 season.

[12] After an impressive training camp, Johnson made the Browns' initial 53-man roster for the 2019 season.

[14] He made his regular season debut with one carry for 13 yards in the Browns' 2019 season-opening loss to the Tennessee Titans.

[17] On October 21, 2021, he made his first career start against the Denver Broncos, as Nick Chubb and Kareem Hunt were both ruled out due to injury.