Granderson gets 4 year extension 4/52 mil 35 gtd

I’m confused about ERFA…is it guaranteed that we will have him for another year?
Yeah from what I read after the season we either offer him a 1 year league minimum contract before the new league year begins or he becomes an UFA. No way we let him hit free agency so we'll 100% do that and he has no choice but to play under that contract or his only other choice is not play football. I think we could also offer a long term contract but not sure exactly how it works; like can we sign him right away to lets say a 4 year contract, or he has to sign the 1 year tender and then we extend for 3 more years... Either way, he'll be here next year.

https://www.profootballnetwork.com/...agent-and-how-do-they-affect-nfl-free-agency/