After impressing the coaching staff at VFL level, Gallop was drafted to the Brisbane Lions as an academy selection with pick 42 in the 2024 national draft.[8][9] Prior to making his debut, Gallop extended his maiden contact by a further year.[10]
Gallop debuted for the Brisbane Lions in round 13 of the 2025 AFL season against the Adelaide Crows.[11] Gallop had a break-out finals series, becoming a mainstay in Brisbane's team.[4] He kicked his first career goal in the semi-final against Gold Coast, and then another three in the preliminary final against Collingwood, becoming the highest rated player on the ground in the latter match.[12][13]
In just his sixth AFL match, Gallop played in Brisbane's 2025 AFL Grand Final winning team, becoming a premiership player in his first season in the league.[14]
