What happened: Major League Baseball entered its offseason calendar following the conclusion of the World Series, initiating the period for contract decisions and roster management. Eligible players immediately hit the open market, while front offices face upcoming deadlines on club options, player options, and qualifying offers.

Why it matters: The opening five-day exclusive negotiating window allows teams to negotiate extensions before unrestricted free agency begins across the league. Front offices must also finalize qualifying-offer decisions, establishing the compensation dynamics for the winter.

What to watch: Contract option choices and qualifying-offer deadlines will unfold over the coming week before full free agency opens.