Jack Della Maddalena already finds himself in the crosshairs of pound-for-pound king Islam Makhachev after claiming the welterweight title at UFC 315.

Jack Della Maddalena completely changed his career in the main event of UFC 315 — and it's possible the best is yet to come. The Australian challenged Belal Muhammad for the UFC Welterweight title — the title once held by French-Canadian legend Georges St-Pierre — in the main event at a raucous Bell Centre in Montreal.

Lightweight champion Islam Makhachev reacted to Jack Della Maddalena winning the welterweight title at UFC 315.