Ruiz is absent from the lineup for the first game of Tuesday's doubleheader versus the White Sox.
Ruiz is out of the lineup for Sunday's game against the Red Sox.
Ruiz is out of the lineup for Wednesday's game against the Rangers.
Ruiz is out of the lineup for Sunday's game against the Marlins.
The Nationals reinstated Ruiz (illness) from the 10-day injured list Thursday.
Ruiz (illness) will begin a rehab assignment with Double-A Harrisburg on Tuesday, Andrew Golden of The Washington Post reports.
Ruiz (illness) indicated Sunday that he was almost fully recovered from the bout of the flu that landed him on the 10-day injured list, but he's expected to go on a short rehab stint before being activated, Mark Zuckerman of MASN Sports reports.
The Nationals placed Ruiz (illness) on the 10-day injured list Monday, retroactive to April 12, Andrew Golden of The Washington Post reports.
Ruiz (illness) is out of the lineup for Sunday's game against the Athletics, Andrew Golden of The Washington Post reports.
Ruiz (illness) isn't in the Nationals' lineup Saturday versus Oakland, Andrew Golden of The Washington Post reports.