Giacomo "Jack" Della Maddalena (born 10 September 1996) is an Australian professional mixed martial artist.
Due to the influence of his older brother Josh, Maddalena joined a boxing gym at the age of fourteen, using it to improve his fitness for the rugby season.
He went on to lose his next fight against Darcy Vendy via submission in the first round, before accumulating a nine-fight winning streak whilst securing the Eternal Welterweight Championship and defending it four times.
[6] Della Maddalena was invited to face Ange Loosa on 14 September 2021 at Dana White's Contender Series 39, where he won the bout via unanimous decision and secured a UFC contract.
[12] However, Alves pulled out in early January due to undisclosed reasons and he was replaced by promotional newcomer Pete Rodriguez.
[27] The day before the event on 7 July, Harrell was pulled from the fight due to being diagnosed with Moyamoya disease during his pre-fight medical screening and the bout was scrapped.
[28] Della Maddalena faced promotional newcomer Bassil Hafez on 15 July 2023 at UFC Fight Night: Holm vs. Bueno Silva.