I met him at the fifth annual Rowdies Suncoast Invitational at Al Lang Stadium in St. Petersburg, Florida in 2020 when Inter Miami CF, whom he was the assistant coach for, played the Philadelphia Union in a pre-season game.
Claudio signed a 1994/1995 Upper Deck Argentina Premier Division card #24.
https://es.wikipedia.org/wiki/Claudio_Arzeno