Magnus Mattsson

Silkeborg

Mattsson started his career at ØBG Fodbold in Silkeborg. He played there until 2012 where he moved to Silkeborg IF at the age of 13 years. He made his debut for Silkeborg IF's first team in the Danish Superliga on 25 August 2017 against Hobro IK. He was also a starter in the cup final in the 2017–18 Danish Cup, where Mattsson and Silkeborg were up against Brøndby IF. The match ended with a 3–1 win for Brøndby IF. At the end of 2018, Mattsson was named player of the year in Silkeborg IF. A few months later, Silkeborg was relegated to the Danish 1st Division. In March 2019, Mattsson suffered a long-term injury in his groin, which kept him on the sidelines for half a year. However, with 20 appearances and 6 goals in the league during the season, Mattsson helped Silkeborg with promotion to the Danish Superliga again for the 2019–20 season. To gain some game fitness after being injured for half a year, Mattsson was called up for a U19 game in September 2019. Unluckily, Mattsson suffered an injury to his left anterior cruciate ligament in that game and was again out for a longer period. Having undergone knee surgery, he was in recovery until the end of the 2019–20 season.

NEC

On 28 June 2021, it was confirmed that Mattsson had been sold to Dutch club NEC, signing a deal until June 2024 with an option for one further year.

Copenhagen

Mattsson joined Copenhagen on 1 February 2024 signing a contract with the Danish side through the 2027–28…

As of match played 27 August 2025

Mattsson's younger brother, Pelle Mattsson, is also a footballer, playing for Norwich City FC. Their father, Joakim Mattsson, is a Swedish football manager. Beside football, Mattsson is also a music producer and creates beats for American musicians.

Silkeborg

Danish 1st Division: 2019–20 Copenhagen

Danish Superliga: 2024–25 Danish Cup: 2024–25 Individual

Danish 1st Division Player of the Season: 2020–21 Danish Superliga Team of the Month: March 2024