Tender
From MLB4Uwiki
oloviv On or before December 12 (or if a Sunday, then on or before December 11) every team must decide whether or not to tender a contract to all unsigned players on the 40-man roster.
Players not tendered a contract become free agents eligible to sign with any team.
The Central Tender Letter for each Player that is tendered a contract includes the salary or salaries, performance bonuses and/or other terms, if any, offered by the Club. The Central Tender Letter must also separately list, also by Club, those players who have not been tendered a contract for the term of the next year. The Office of the Commissioner, at the time it transmits the Central Tender Letter, shall provide to the Association addresses for all Players who had been promoted to the Major League roster for the first time in the preceding November and for those Players who do not have a certified Player Agent.
With the exception of an untimely tender or renewal, any inadvertent error in the tendering or renewal of a contract shall result in free agency only if the Player has first given the Club written notice that the tendered or renewed Contract does not conform to the requirements of the CBA and the Club has not retendered or reexercised a renewal in conformance with all applicable rules within seven (7) days after receipt by the Club of written notice of such defect. In the event of an untimely tender or renewal, the Player shall immediately become a free agent and the Club shall have no right to cure such a tender or renewal.
A Club may also reserve, under separate headings on a Reserve List, Players who properly have been placed on the Voluntarily Retired List, the Military List, the Suspended List, the Restricted List, the Disqualified List or the Ineligible List.

