Defender Kasey Bos

Debut: N/A

Socceroos Cap Number: N/A

Appearances (goals): 0 (0)

Major tournaments: N/A

Current Club: Excelsior Rotterdam, Netherlands (on loan from Mainz 05)

Junior Club: Point Cook FC (Football Victoria)

Kasey Bos is an exciting left-back who has earned his second CommBank Socceroos call-up after making the move to European football.

The younger brother of Socceroo Jordy Bos, Kasey enjoyed a breakthrough campaign with Melbourne Victory in 2024/25, contributing four goals and two assists as the club reached the A-League Men Grand Final. His performances earned him a first senior national team call-up in June 2025.

Bos subsequently secured a move to Bundesliga club Mainz 05 before joining Excelsior Rotterdam on loan for the 2026/27 season. The 22-year-old has worked his way into the side following a shoulder injury and offers pace, energy and attacking intent from left-back as he pushes for his Socceroos debut.