January 1: Earliest permissible date for clubs to renegotiate or extend the rookie contract of a drafted rookie who was selected in any round of the 2015 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.
Option exercise period begins for Fifth-Year Option for First- Round Selections from the 2015 NFL Draft. To exercise the option, the club must give written notice to the player on or after January 1, 2018, but prior to May 3, 2018.