Winker could miss out on a big-league roster spot with the Nationals after the team added Eddie Rosario last week, Mark Zuckerman of MASN Sports reports.

The 30-year-old Winker looked like a good bet to break camp with the Nats when he signed an NRI deal in February, provided that he was healthy and could re-discover his old form at the plate. He's held up his end up that bargain so far, batting .350 (7-for-20) through nine spring games with two doubles and a 5:4 BB:K, but the Rosario signing likely bumps Joey Gallo from left field to first base and Joey Meneses from 1B to DH, seeming to leave little room for a defensively limited player like Winker.