NFL Player Contract
Section 9(a)(v)Forfeiture of Salary
Players and Clubs may not agree upon contract provisions that authorize the Club to obtain a forfeiture of any Salary from a player except to the extent and in the circumstances provided in this Section 9. For the avoidance of doubt, Paragraph 5 Salary already earned may never be forfeited, and other Salary already earned may never be forfeited except as expressly provided herein. The maximum permitted forfeitures described below do not in any way obligate any player or Club to agree to any forfeiture.
Second Forfeitable Breach. If the player commits an initial Forfeitable Breach (including a Forfeitable Breach in training camp) and then commits a second Forfeitable Breach during the regular season or postseason in the same League Year, the player may be required to forfeit immediately the entirety of his remaining Forfeitable Salary Allocations for that League Year.