A Maroochydore junior taken through the Brisbane Lions Academy in the 2024 draft, Gallop debuted in Round 13, 2025 against Adelaide and was in the side for all four finals, kicking three goals against Collingwood at the MCG on the way to a premiership. The 194cm key forward has also been used in defence, and earned a Round 16 Rising Star nomination. He has played 24 games and kicked 5 goals.