NOTES: Closer Drew Storen began a rehab assignment Thursday with Single-A Potomac, the last step between the April 11 surgery he had to remove a bone chip in his right elbow and his return to the active roster. Storen is expected to make four minor league appearances with a day off between each one and be ready to be activated next Friday when the Nationals open the second half in Miami.
• Utilityman Chad Tracy (torn right adductor) also is rehabbing in Potomac, making his second appearance Thursday. He was 0 for 3 on Wednesday with a walk and scored a run. He had no issues regarding his running.
• Outfielder Jayson Werth is on schedule in his rehab from a broken left wrist. Werth, who has been shagging fly balls in the outfield during batting practice, has not yet been cleared to swing and still is still dealing with some pain when he make a swinging motion. Johnson said he doesn’t anticipate Werth swinging until after the All-Star break, though he remains on schedule for an early August return.