He played college football at Ohio State and was selected by the Cardinals sixth overall in the 2023 NFL draft.

[2][3] The top-ranked offensive tackle of the class of 2020, he chose to attend Ohio State University.

[11] Following the release of longtime starter D. J. Humphries, Johnson was named the Cardinals starting left tackle.

[12] He majored in journalism at Ohio State, writing several articles for their student newspaper The Lantern before graduating in December 2022.

[14] He speaks Mandarin Chinese and some Portuguese, having studied the former since late childhood and the latter after gaining an interest in visiting Brazil.