A thrilling Western Derby in round 22 of the 2021 AFL season saw Serong win Goal of the Year after kicking a remarkable off-the-canvas banana from an 'impossible angle' deep within Optus Stadium’s south-east pocket.
[9] The 2022 AFL season saw Serong play 22 out of a possible 24 games, missing Fremantle's Round 3 Western Derby due to a sore knee,[10] as well as their clash against GWS the following week.
He was arguably best-afield during Fremantle's round 23 clash against GWS at Manuka Oval in Canberra, collecting a game-high 32 possessions, 11 clearances, eight score involvements and kicking a goal.
[11] Serong again had a stand out performance the next week during Fremantle's elimination final against the Western Bulldogs at Optus Stadium, racking up 33 disposals, 10 clearances and a goal.
[13] In round 3 of the 2023 season, Serong won the Glendinning–Allan Medal for best on ground in the Western Derby against the West Coast Eagles with 35 disposals and 9 score involvements, and tallying a perfect 10 coaches votes.
Serong collected a club record 17 clearances and 37 disposals in round eight during Fremantle's 24 point win over the Western Bulldogs at Optus.