What happened: Major League Baseball officially entered the 2026-27 offseason following the conclusion of the World Series. The milestone opens the winter transaction window, allowing all 30 clubs to pursue free-agent negotiations and trade discussions. Front offices across the league are shifting focus toward addressing core roster needs.

Why it matters: The opening of the offseason establishes organizational priorities and payroll parameters across the league. Franchises must balance contract decisions and farm system depth to construct competitive rosters for the 2027 campaign. Early market activity typically dictates valuation trends and trade leverage throughout the winter.

What to watch: Front offices will intensify trade discussions and free-agent negotiations in the coming weeks. League executives are scheduled to convene at the annual winter meetings in December.