The Juventus idol has seen the Sky Blues lose their last four matches to plummet to the bottom of the A-League table and after Friday night's 2-1 defeat to Adelaide United, caretaker boss Corica spoke of the Italian's mental struggle.
"He's frustrated we're losing. He hasn't lost for a long time back home in Italy," Corica said of Del Piero.
"We're losing games and it's not nice to lose games. He's frustrated and everybody should be frustrated.
"That's football. When you're down and conceding late goals... it's tough to take. It's just the way it's going at the moment.
"We've got to get on with it and find a win from somewhere."