Nunez is expected to begin the season on the 26-man roster after Trey Lipscomb was reassigned to minor-league camp Tuesday.
A Rule 5 pick from the Marlins, Nunez was a favorite to win a bench role when camp began, but Lipscomb's big spring created some uncertainty on how the Nationals would configure their infield. The 23-year-old Nunez stole 52 bases in 59 attempts at Double-A last season but slashed only .224/.341/.286, so he'll likely be limited to pinch-running duties in 2024 if he's able to stick on the big-league roster all year rather than being offered back to Miami.