Key NFL dates
Sunday: NFL combine, final day (defensive backs), 1-6 p.m. on the NFL Network.
March 6-April 3: College pro days. That includes the Gophers on March 25. Ohio State's Chase Young works out March 25, and LSU's Joe Burrow works out April 3.
March 18: The 2020 league year and free-agency period begin at 3 p.m.
March 29-April 1: League meeting in Palm Beach, Fla.
April 23-25: NFL draft in Las Vegas.