From the CBA:
"Section 9. Renegotiations and Extensions: Provided that all Salary Cap requirements are met, Player Contracts for current and future years may be renegotiated and/or extended except as follows:
(a) The contract of a Veteran Player may not be renegotiated to increase the Salary to be paid to the player during the original terms of the contract for a period of twelve months after the player’s most recent contract renegotiation. The first renegotiation of a Veteran Player Contract, however, may take place at any time.
(b) No Team and player may agree to renegotiate any term of a previously signed Player Contract for a prior League Year.
(c) No contract renegotiations may be done for a current season after the last regular season game of that season.
(d) A Player Contract signed by a Rookie may not be renegotiated except as provided in Article XVII (Entering Player Pool), Section 4(f).
(e) As provided in Article XXI (Final Eight Plan), Sections 3 and 4.
* No Player Contract, and no contract renegotiation or extension, may be agreed to between a Player and a Club for any term that expires prior to the last day of a League Year. All rights by a player to terminate a Player Contract must be exercised prior to the first day of any League Year to be terminated.[END QUOTE]
I happen to think that the NFL Network's report is incorrect. There is nothing to prevent the Pats and Seymour to reach a deal that lowers his 2006 salary. If Brady could redo his deal in September, 2004 and then extend his deal in March, 2005, why can't Seymour do the same??
Dillon redid his deal in April, 2005 and just redid his deal again in March, 2006. If the 12-month requirement was true, how was that possible??