Jayson Werth was a late scratch for the Nationals' Saturday matchup with the Rockies after originally being in the morning lineup.
Afterwards manager Davey Johnson attributed it to flu-like symptoms.
"I think he’s got some, he told me had some sort of flu, chills," Johnson said. "I didn’t see him during the game, I think he just stayed inside."
Werth had visited a specialist, Dr. Keith Pyne, before the game to look at a variety of small issues, Johnson said in the morning. Johnson said there was no concern about his right hamstring which kept him out from May 2 to June 4.
"I think he’s alright there. I think he’s fine," Johnson said.
Since returning from the month-long absence, Werth has struggled overall on offense, but had seemed to turn a corner of late. In the team's recent series in Philadelphia, Werth had a home run and four RBI in three games. In the two games since, however, he was 0-for-7 with five strikeouts.
Werth was sick earlier this season, dealing with a stomach virus that caused him to be dehydrated. His status is considered day-to-day.