What happened: Teams would set their 26-man active rosters each Monday, with exceptions for injuries, trades, waiver claims and specified absences. Other proposals would revise Rule 5 Draft eligibility and confine most free-agent activity to a December window before a transaction moratorium lasting until February.

Why it matters: The package would reshape roster management and compress an offseason market that often stretches toward spring training. Its cap-and-floor condition places those changes inside the central economic dispute as negotiations toward a new collective bargaining agreement continue.

What to watch: Watch for the MLBPA’s response and whether either side separates the roster provisions from the proposed cap-and-floor system.