What happened: Junior Pérez is being moved to center field for the Chicago White Sox. The shift puts him in an everyday up-the-middle defensive spot.

Why it matters: Center-field reps point to where the White Sox see Pérez fitting as they sort out their outfield alignment. Steady time in center is a meaningful role for a young player still establishing himself.

What to watch: Watch whether Pérez holds center field over the next several games or rotates with other outfielders.