"We'll see how he does, see how he's feeling," Johnson said. "Maybe he just goes three innings and then he has to come back and do five. And maybe he feels good enough to throw seven and come back early. The more we get him stretched out to where he can at least do five, [the better]."
In the meantime, the Nationals will use right-hander Tanner Roark, who was recalled from Triple-A Syracuse on Tuesday, as their long reliever.
Tom Schad is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.