Asked his level of concern about Johnson, Nationals general manager Mike Rizzo replied: "None."
Johnson's players did not seem to be too worried about him, either, with several making jokes about what happened.
"Everybody's hurting. I mean, it's September," right fielder Jayson Werth explained. "Maybe they're sympathy pains. I'm not sure."
Noting that several everyday players got a chance to sit out Tuesday or Wednesday, third baseman Ryan Zimmerman kidded: "I thought he just didn't want to manage; he was tired of managing. Everyone else got a day off, yesterday or today, so I thought he was taking one."
Said first baseman Adam LaRoche: "I thought he just needed a nap."