How former Wisconsin linebacker Jack Sanborn went from undrafted to 'hometown hero'
Hub Arkush: Which undrafted free agents have best chance to be this year's Jack Sanborn? – Shaw Local
Jack Sanborn's explosive defense vs. Lions
Jack Sanborn Highlights Welcome to the Chicago Bears 🔥
Jack Sanborn Highlights Welcome to the Chicago Bears 🔥
Jack Sanborn on why he chose Bears as UDFA
2021 Nebraska Football Yearbook by huskersillustrated - Issuu
2015-16 Griffiti - Issue #3 by Grand Rapids Griffins - Issuu
2021 Nebraska Football Yearbook by huskersillustrated - Issuu
Can UDFA LB Jack Sanborn Make Bears Final Roster? - Bears Insider
Defense forces fumble, Jack Sanborn recovers