Isak Brusberg

Brusberg hails from Hisings Backa and played youth football for Backatorp IF until 2023, when he joined the academy of Häcken. In the same year, he made his Allsvenskan debut. In October 2023, Brusberg officially signed a senior contract with Häcken, lasting until the end of 2026. However, he sat out 2024 due to injury and did not play a single match. Brusberg's first start came in the 2025 Allsvenskan, as the team struggled with injuries in the squad. Brusberg scored against GAIS in a Gothenburg derby in June 2025, then against Halmstad in July. During Häcken's 2025 spell in Europe, Brusberg scored with a chip in the first minute against Brann in the Europa League third qualifying round at home - the goal was however disallowed by VAR. With Häcken being relegated to the Conference League play-off round, Brusberg scored in a 7–2 routing of CFR Cluj. On 21 January 2026, Brusberg joined Polish Ekstraklasa club Raków Częstochowa, signing a contract until the end of 2030.

Brusberg made his debut for Sweden U17 against Denmark at a U17 four-nation tournament in September 2023, and played continuously for six months, including a U18 three-nation tournament in March 2024.

Häcken

Svenska Cupen: 2024–25