Ankiel is still bothered by a tight left quad, an injury that has limited him to nine games this spring. No decision will be made until early next week.
"We are going to play it day by day," manager Davey Johnson said. "If he doesn't get some at-bats during the next couple of days, we might have to re-evaluate just to be on the safe side. He may get at-bats [in a rehab assignment] like Michael Morse."
If Ankiel is not ready, the Nationals will most likely have Roger Bernadina as the starting center fielder against the Cubs on Thursday.