What is the minimum duration required for a player to be eligible for free agency?

The correct answer reflects the fact that in the NFL, a player must have at least three accrued seasons to be eligible for free agency. An accrued season is defined as a season in which a player is on the active roster for at least six games. This requirement is set forth in the collective bargaining agreement and is designed to ensure that players are given a fair amount of experience and exposure in the league before they enter the free agency market.

Achieving three accrued seasons provides players with a level of experience and tenure that typically qualifies them for negotiations at a higher level. It distinguishes them from rookies or players with less time in the league, ensuring that free agency is reserved for those who have demonstrated their commitment and performance over a significant period. Thus, the three-accrued-season rule serves to protect both the integrity of the league and the interests of players by allowing them more opportunities to negotiate contracts that reflect their value based on their experience.