UFC Perth preview and predictions: Jack Della Maddalena or Carlos Prates — who wins?

UFC returns to Perth, Australia on Saturday with a welterweights main event featuring former champion Jack Della Maddalena against Carlos Prates, approximately one year after Della Maddalena won the 170-pound title in Montreal. Prates is seeking his first title opportunity, having built momentum through a series of knockouts. The co-main event features lightweight contender Beneil Dariush against Australian prospect Quillan Salkilld.