Axel Sjöberg

IK Frej

On 19 July 2019, Sjöberg joined IK Frej in Superettan, on a one-and-a-half-year contract. He only made one league appearance during the second half of the season, as the club got relegated from Sweden's second division. In 2020, Sjöberg made 26 league appearances and captained IK Frej as the club finished 9th in Division 1, the third tier.

Hammarby IF

On 5 August 2020, Sjöberg signed a one-and-a-half-year contract with Hammarby IF, although still being eligible to play for affiliated club IK Frej. He made his Allsvenskan debut on 30 August in a 3–3 home draw against Kalmar FF. On 30 May 2021, Sjöberg won the 2020–21 Svenska Cupen, the main domestic cup, with Hammarby IF, through a 5–4 win on penalties (0–0 after full-time) against BK Häcken in the final. On 4 August 2021, Sjöberg was sent out on loan to IK Brage in Superettan for the remainder of the year. At the end of the year, it was announced that Sjöberg would leave Hammarby IF at the expiration of his contract.

BK Olympic

Sjöberg spent 2022 at BK Olympic, scoring 2 goals in 25 appearances in all competitions during his time with the club.

St Patrick's Athletic

On 3 March 2023, Sjöberg signed for League of Ireland Premier Division club St Patrick's Athletic. He made his debut for the club on 31 March 2023, replacing Sam Curtis from the bench in the 82nd minute of a 3–0 home win over UCD. On 26 May 2023, Sjöberg picked up an injury in a 2–1 win over Dundalk that would keep…

As of match played on 31 October 2026

Sjöberg was born in Helsingborg, Sweden, and started to play football as a youngster with local club Eskilsminne IF before moving to Helsingborgs IF in 2013. He was part of their youth academy for seven years, but left the club in 2019 after not being offered a professional contract.

His twin brother Filip Sjöberg is also a professional footballer.