<P> Undrafted free agents are players eligible for the NFL Draft but who are not selected; they can negotiate and sign with any team . </P> <Dl> <Dt> "Plan B" free agency </Dt> </Dl> <Dt> "Plan B" free agency </Dt> <P> Plan B free agency was a type of free agency that became active in the National Football League in February 1989 to 1992 . Plan B free agency permitted all teams in the NFL to preserve limited rights of no more than 37 total players a season; if a player was a protected Plan B free agent, he was incapable of signing with another team without providing his old team the first opportunity to sign him again . The rest of the players were left unprotected, liberated to negotiate contracts with the rest of the teams in the league . </P>

When does an nba player become a free agent