Mads Roerslev

FC Copenhagen

A right-back, Roerslev progressed through the academy at F.C. Copenhagen and made his senior debut as a second-half substitute for Frederik Bay in a Danish Cup third round match versus Jammerbugt FC on 26 October 2016. He capped a dream debut with a goal in the 6–1 victory. Roerslev made four further appearances during the 2016–17 season and signed a new four-year contract in May 2017. He worked to improve his one-on-one defending with experienced right-back Tom Høgli. Down the pecking order at the Parken Stadium, Roerslev appeared sparingly during the 2017–18 and 2018–19 seasons. He spent time away on loan at Halmstads BK and Vendsyssel FF, but made few appearances for either club, which hindered his development. Entering the 2019–20 season completely out of favour, Roerslev departed F.C. Copenhagen in August 2019, after making 13 appearances and scoring one goal during three seasons as a senior player at the club.

Brentford

2019–2022

On 7 August 2019, Roerslev moved to England to join the B team at Championship club Brentford on a two-year contract, with the option of a further year, for an undisclosed nominal fee. Roerslev broke into the first team squad in October 2019 and by March 2020, after 10 appearances, his performances led to him signing a new four-year contract and promotion into the first team squad. Roerslev ended the 2019–20 season with 14 appearances. A metatarsal injury suffered on international duty saw Roerslev…

Roerslev was capped by Denmark at every level between U17 and U21. He was a member of the Danes' 2016 U17, 2018 U19 and 2021 U21 UEFA European Championship squads. In May 2022, Roerslev was called into the senior team's training camp prior to its opening 2022–23 Nations League A matches. Following the withdrawal of Alexander Bah, Roerslev won his maiden call into the Denmark squad for a pair of friendly matches in March 2024 and he remained an unused substitute in both. Two defensive suspensions saw Roerslev win his second call-up for a Nations League A match versus Switzerland on 15 October 2024 and he again remained an unused substitute. Injury to Joakim Mæhle saw Roerslev receive his third call-up for the following pair of Nations League A matches in November 2024. He made his debut with a start in the second match, a 0–0 draw with Serbia.

A right-back, Roerslev "is very good offensively – he is a good crosser of the ball, very good one-on-one, quick and energetic to get up and down the pitch. He is also good defending one-on-one".

Roerslev was a Manchester United supporter while growing up.