He played college football at Oregon and was selected by the Minnesota Vikings in the seventh round, 239th overall of the 2019 NFL draft.

In his senior season, he was named Tennessee's Gatorade football player of the year after he caught 81 passes for 1,484 yards and 22 touchdowns, leading the Spartans to a 9–4 record and the Class 6A quarterfinals.

Highly touted as both a basketball and football player, Mitchell committed to the University of Oregon to play college football,[3] picking the Ducks over a list that also included Ole Miss, Mississippi State, Alabama, Auburn, Tennessee and Cincinnati.

[5][6] As a junior in 2018, Mitchell set the school record for receiving yards in a season with 1,184 on 75 receptions and 10 touchdowns.

[15] On July 29, 2022, Mitchell signed with the Edmonton Elks of the Canadian Football League (CFL).