The veteran forward is available after leaving Australia's Sydney FC.
â€śTwo years ago it was interesting and it would be interesting again,â€ť Del Piero told The Sun.
â€śIf we could talk then great. If you want Iâ€™ll give you my phone number and you can pass it on! Celtic are a great team and Iâ€™ve always enjoyed playing in Scotland so who knows?
â€śWe were in contact with Celtic but it didnâ€™t come to anything. But I was very interested in moving to Scotland.â€ť
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