Duggan played for Ballarat's St Patrick's College in the BAS school competition, the Western Jets at TAC Cup and Vic Metro in the National U18s. In 2014 the AIS-AFL Academy awarded him with the Ben Mitchell Medal.[1] Duggan was drafted with pick 11 of the 2014 National Draft.[2]
He debuted against Carlton in round 2 of the 2015 season.[3] Duggan had a standout game in the 53 point victory over St Kilda Football Club in round 8, 2015. He racked up 23 disposals including six marks and four tackles, which impressed his older teammates, notably Luke Shuey.[4] Duggan suffered a season ending knee injury during a round 17 Western Australian Football League game playing for East Perth Football Club after copping a knock to his posterior cruciate ligament in his right knee. He finished his debut season with 12 senior games of AFL.[5][6]
In Round 8 2024, Liam was awarded 2 Brownlow votes for his gallant efforts against a raging Essendon side which included 8 marks and 2 clearances.
Statistics
Statistics are correct to the end of round 7, 2019[7]