What happened: Players on 40-man rosters remain eligible to be traded until the window closes Monday. Afterward, those players may be placed and claimed on outright waivers but cannot be traded.

Why it matters: Monday’s decisions will shape postseason rosters and determine which clubs exchange current talent for longer-term assets. The single-deadline system leaves no August waiver-trade period for later adjustments.

What to watch: Completed deals and any transactions submitted near the cutoff will command attention through the evening.