Halladay struggled mightily in 2 2/3 innings Tuesday. He said he was lethargic because of a more intense workout routine and throwing two bullpen sessions before that start. Both Halladay and Dubee have said there are no health issues.
He is scheduled to pitch Sunday against the Orioles.
Todd Zolecki is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.