Overview
- Rookie Jacob Misiorowski became the fastest player in history to earn an All-Star nod after only five MLB appearances, breaking the previous mark of 11 games.
- Kansas City closer Carlos Estévez joined the American League roster to replace Jacob deGrom, who was ruled ineligible due to a scheduled start.
- Teams added seven players—six pitchers and one position player—to fill vacancies created by scheduled starts plus rest decisions.
- San Diego made history as the first franchise to send three relievers to an All-Star Game when Adrián Morejón was named to the National League team.
- Phillies manager Rob Thomson and players like Trea Turner and Nick Castellanos protested the exclusion of Cristopher Sánchez, ineligible due to a pending start, and Ranger Suárez, who declined for rest, questioning the selection criteria.