What happened: ESPN's Buster Olney published a column identifying the key X factors he believes could shape the 2026 MLB trade deadline. The piece lays out the variables to watch as contending and rebuilding clubs weigh their summer moves.

Why it matters: The deadline is one of the season's most consequential roster-shaping windows, and how front offices read these factors will help separate buyers from sellers. The framing builds on Olney's earlier read on the deadline's moving pieces.

What to watch: Watch how contenders and sellers act on these factors as the deadline draws closer and standings tighten through the summer.