The Bianconeri are seven points behind Serie A leaders Inter, following their 3-2 loss to Cagliari at the weekend.
“We still believe in it even though it was easier to say last week,” Del Piero told UEFA.com.
“It has been a terrible time for us, but these things happen and it could also happen to other teams.
“I am not worried at all because we have what it takes to resolve all our problems.”
