Barring a last-minute setback, right-handed reliever Todd Coffey will return Sunday, the first day he is eligible to come back from the left calf strain that sent him to the disabled list. So the real question is, will his calf injury prevent him from his usual routine, or he will he still be sprinting hell-bent from the bullpen to the infield?

The Nationals had assumed Coffey would come off the disabled list Sunday since they placed him on it last weekend. Today, he underwent a battery of sprints on a treadmill, the stiffest test he gave his calf since he strained it during the first week of the season.

“Everything felt fine,” Coffey said. “No issues.”

Coffey appeared in five games before injuring his calf, allowing three earned runs in 4 1/3 innings with two strikeouts and three walks.