He played college football at Michigan and was selected by the Minnesota Vikings in the fourth round of the 2017 NFL draft.

Gedeon appeared in 51 games and made 14 starting assignments at linebacker, ultimately recording 176 tackles, 6.5 sacks, 21 tackles-for-loss and two pass breakups.

[8] Throughout training camp, Gedeon competed against Emmanuel Lamur, Edmond Robinson, Elijah Lee, and Kentrell Brothers for the job as the starting weakside linebacker after it was left vacant due to the retirement of Chad Greenway.

[10] He made his regular season debut and first career start in the Vikings' season-opener against the New Orleans Saints and recorded a solo tackle during their 29–19 victory.

On January 14, 2018, Gedeon played in first career playoff game and assisted on one tackle in a 29–24 victory against the Saints in the NFC Divisional round.

Head coach Mike Zimmer named Gedeon and Anthony Barr the starting outside linebackers.