Eric Weddle unretired and is signing with the Rams for their postseason run??? I never heard or seen that in my life is it against any rules?
When a player retires while under contract, a team can add them to the Reserve/Retired List, in which case the contract progression pauses, and would resume if the player unretires.
Also, a player who retires before training camp begins cannot play for another team that season.
It appears Weddle signed a two-year contract with the Rams in 2019, and then retired after one year. It's unclear if the Rams did add him to the Reserve/Retired list in order to hold his rights, but reports of his unretirement say he signed a one-year contract with the Rams, which seems to be a new contract.