Overview
- Owners approved stepped-up enforcement of existing Rule 5.03(c) at meetings in Florida, making coach positioning a priority for 2026.
- While the pitcher is on the rubber, first- and third-base coaches must remain in the box until the pitch is delivered.
- Penalties mirror the rulebook: a warning for the first offense and ejection for a subsequent violation, with possible further discipline.
- MLB aims to reduce pitch-tipping and on-field relays; the drawn boxes remain three-sided to permit a safety buffer toward the dugout.
- In separate guidance, runners who initiate contact to draw obstruction will be ruled out, with other runners returned to the last base touched.