Mariners, Aroldis Chapman, and Xander Bogaerts headline a busy MLB update, with Eugenio Suárez and new infield drills hinting at growing Seattle chemistry. Chapman’s Boston extension tightens the closing role, while Bogaerts faces a 10-day IL fracture that could reshape San Diego’s infield balance as the playoff chase heats up.

MacKenzie Gore’s IL placement clouds Washington’s rotation outlook, Alek Manoah nears a return for Toronto, and Tom Murphy opened up about past medical issues affecting his season. Kona Takahashi remains a looming winter posting target for MLB teams. Fantasy managers should recalibrate risk and upside across these veteran players as rosters shift.

MacKenzie Gore landed on the Nationals' injured list with shoulder inflammation, a setback that clouds Washington’s rotation plans and fantasy timelines.

Gore posted 4.15 ERA over 147.1 innings with 173 punchouts this year, but his second-half slide—7.54 ERA in eight starts after the break—has fantasy managers weighing durability against upside. Washington stuck with him at the Deadline, and the IL stint adds urgency to 2026 planning and trade considerations.

As Gore rests the shoulder for the minimum 15 days, fantasy rosters will need to pivot, monitoring rehab progress and potential ramp for a late-season return. The injury also tempers Gore’s long-term trade value, heightening scrutiny of his durability heading into free agency after 2027.