The Nationals activated infielder Anthony Rendon from the 15-day disabled list, the team announced on Saturday.
Rendon has been out the last 25 games with a quad strain. He returns from a minor league rehab assignment at Class A Potomac, where he hit .471.
To make room, the Nationals optioned pitcher Abel De Los Santos to Double-A Harrisburg. De los Santos had a 5.40 ERA in two relief appearances for Washington.