What happened: ESPN's Buster Olney published a column identifying the X factors to watch as the 2026 MLB trade deadline approaches. The piece outlines the variables — contending clubs, fringe sellers, and undecided front offices — that could shape how aggressively teams buy or sell.

Why it matters: Trade-deadline positioning sets the second-half trajectory for contenders and rebuilders alike, determining which rosters get reinforced and which begin offloading veterans. The teams still weighing their direction are the ones whose decisions tend to move the broader market.

What to watch: Watch how the standings tighten in the coming weeks, as borderline contenders' buy-or-sell calls will firm up the closer the deadline gets. Olney has been tracking these storylines across his recent coverage.