Nationals and Zimmermann agree to one-year deal
Terms of the deal announced Friday by the Nationals were not immediately known.
The 26-year-old Zimmermann had asked for $5.8 million, while the Nationals submitted $4.6 million. He made $2.3 million last season, when he went 12-8 with a 2.94 ERA last season, making 32 starts and pitching 195 2-3 innings.
Washington avoided arbitration with all seven eligible players.