Take a look at the key dates for the 2017 NFL offseason, including the Senior Bowl, Scouting Combine, start of free agency and NFL Draft. It's also worth noting that the San Francisco 49ers can begin offseason workouts earlier than other teams with returning head coaches.
January 1: Week 17.
January 2: Earliest permissible date for clubs to renegotiate or extend the rookie contract of a drafted rookie who was selected in any round of the 2014 NFL Draft. Any permissible renegotiated or extended player contract will not be considered a rookie contract, and will not be subject to the rules that limit rookie contracts.