Hardy has struggled this spring, allowing seven runs on eight hits with four walks and four strikeouts over 5 1/3 innings. While he had enough success last year to diminish the significance of spring stats, his fastball velocity has also been down a bit, rendering his changeup less effective.
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If Hardy comes back after a few days, he should be in good shape to make the roster, Ausmus said, since he has pitched enough this spring.
• While Ausmus didn't officially put right-hander Drew VerHagen in his Opening Day bullpen, he named him just short of a lock.
"For all intents and purposes, something strange would have to happen for VerHagen to not make the team," Ausmus said before VerHagen delivered a scoreless inning Thursday.
• Victor Martinez began running Thursday for the first time since being sidelined by a hamstring strain, but not at full speed. While running is his last step to returning to game action, he'll need to do so at game speed first.
• Reliever Alex Wilson, who's scheduled to pitch in a simulated game in the next day or two after being sidelined with lat discomfort, would need to show he can pitch multiple innings in a game as well as pitch back-to-back days in order to make the Opening Day roster, according to Ausmus.
Jason Beck is a reporter for MLB.com. Read Beck's Blog, follow him on Twitter @beckjason and listen to his podcast. This story was not subject to the approval of Major League Baseball or its clubs.