He played college football at Minnesota, and was selected by the Green Bay Packers in the fifth round of the 2020 NFL draft.

He was named first-team All-State by the Associated Press as an all-purpose performer after completing 63 of 117 passes for 877 yards and nine touchdowns with one interception and rushing 400 yards and eight touchdowns on offense and recording 79 tackles, two forced fumbles, one interception and 13 pass breakups on defense.

[7] On September 2, 2020, it was reported that Martin had undergone surgery to repair a torn meniscus in his left knee and would be out for at least six weeks.

[10] He made his NFL debut the following day against the Houston Texans, recording six solo tackles (including one for loss) during the 35–20 victory.

[13] On November 29, 2020, Martin recorded his first career sack on Mitchell Trubisky during a Week 12 win over the Chicago Bears on Sunday Night Football.