|Full name||Frederik Hillesborg Sørensen|
|Date of birth||14 April 1992|
|Place of birth||Copenhagen, Denmark|
|Height||1.94 m (6 ft 4 1⁄2 in)|
|1. FC Köln|
|2014–2015||→ Hellas Verona (loan)||10||(0)|
|2015–||1. FC Köln||82||(2)|
* Senior club appearances and goals counted for the domestic league only and correct as of 13:16, 6 November 2018 (UTC)|
‡ National team caps and goals correct as of 4 April 2015
Sørensen is nicknamed Ice Man and Lake (the literal meaning of the abbreviation of his surname Sø)
Born in Copenhagen, Sørensen began playing football with hometown clubs Roskilde KFUM and FC Roskilde before joining Lyngby in 2007. After breaking into the first team, he was under contract until 2013.
Sørensen officially signed for Juventus on 27 August 2010 after a trial with the Turin-based club in July of the same year. He was originally included as a member of the Juventus Primavera team for the 2010–11 season, however he was called into the first team midway through the 2010–11 Serie A season by then-Juventus coach, Luigi Delneri. After injuries to Leandro Rinaudo and Zdeněk Grygera that would rule them out for several months, Sørensen was called up to the first team for the first time against Bologna on 23 October 2010, and again against Milan. In the next league match, on 7 November, due to the unavailability of centre-backs Giorgio Chiellini and Nicola Legrottaglie, Sørensen made his first start alongside Leonardo Bonucci in the centre of defence. In that match, The Old Lady defeated Cesena 3–1.
In the next match, right back Marco Motta was suspended and Sørensen replaced him against Roma. From that match onwards, Sørensen continued to feature for the club at right back, and even managed to maintain a starting position for much of the second half of the season ahead of Motta and Grygera. On the long-awaited Derby d'Italia between Juventus and Internazionale, he notably played the full 90 minutes and silenced Inter forward Samuel Eto'o in an astounding performance in which he also made the assist for the game's only goal.
On 10 May 2011, Sørensen had signed an additional four-year contract with Juve. During the 2011–12 Serie A season, he found little space in the first-team under new head coach Antonio Conte. He was thus sold on a co-ownership deal to fellow Serie A club Bologna during the winter transfer market in order to gain regular first-team playing time.
On 17 January 2012, Sørensen was officially sent to Bologna in a co-ownership deal for €2.5 million (initially in a cash-plus-player deal, for Saphir Taïder). Despite making just three league appearances for his new club during the remainder of the 2011–12 Serie A campaign, the young defender became an integral part of his club's first team throughout the 2012–13 Serie A season, after they had renewed the co-ownership agreement with Juventus.
On 20 June 2013, Sørensen's co-ownership deal with parent club Juventus was renewed once again, and Bologna continued to hold his registration for the 2013–14 Serie A campaign that had ultimately ended in relegation for the Emilia-Romagna-based club after they had finished 19th in the Serie A standings.
Return to Juventus
On 20 June 2014, Sørensen was re-signed on a permanent basis by Juventus for €800,000. In August 2014, Sørensen started training with English side Leeds United ahead of completing a loan move to the club, however the move collapsed after a disagreement between the player's agent and Leeds owner Massimo Cellino, and he returned to Juventus.
Hellas Verona (loan)
1. FC Köln
In July 2015, German Bundesliga side 1. FC Köln signed Sørensen for €1.6 million. He quickly established himself as a starter in the centre of Köln's defence and, in January 2017, signed a contract extension until 2021. The team qualified for the 2017–18 UEFA Europa League but suffered relegation just one season later.
Sørensen has been capped four times for the Danish U17 team, twice against Portugal, and twice against Greece. He also played once for the U18 team in an unofficial friendly (against Bavaria) and against Romania U18 as an unused substitute. He was a part of the Danish squad for the UEFA European Under-21 Championship, but he did not play in any of the three games in the group phase due to injury, where Denmark were eliminated.
- "Dansker imponerer Juve-trænerne" [Dane impress on Juve coaches]. TV 2 Sporten (in Danish). 1 November 2010. Retrieved 15 November 2010.
- Frederik Sørensen forgylder fødekæden - Roskilde Avis Archived 19 July 2011 at the Wayback Machine.
- Frederik "IceMan" Sorensen, the future is already here, Retrieved 13 December 2012[better source needed]
- "Lyngby udlejer forsvarstalent til Juventus". Bold.dk. 27 August 2010.
- "Lyngby udlejer Frederik Sørensen til Juventus". Lyngby-boldklub.dk. 27 August 2010. Archived from the original on 12 July 2012.
- "I 21 bianconeri disponibili per il Bologna". Juventus FC (in Italian). 23 October 2010. Archived from the original on 26 October 2010. Retrieved 8 November 2010. (password-protected)
- "Rientra Amauri, 20 convocati per il big match" [Amauri Returned, 20 call-up for a big match]. Juventus FC (in Italian). 29 October 2010. Archived from the original on 7 November 2010. Retrieved 8 November 2010. (password-protected)
- "Half-yearly financial report at 31 December 2011" (PDF). Juventus FC. 29 March 2012. Archived from the original (PDF) on 19 January 2015. Retrieved 18 June 2012.
- "Sørensen: "Orgoglioso di essere qui"" (in Italian). Bologna FC 1909. 19 January 2012. Retrieved 18 June 2012.[permanent dead link]
- "Annual Financial Report 30 June 2014" (PDF). Juventus F.C. 21 November 2014. Retrieved 13 October 2015.
- "Leeds United: Agent blamed as Sorensen loan deal collapses". Yorkshire Evening Post. 8 August 2014. Retrieved 8 August 2014.
- "Sorensen joins Hellas Verona, Rosseti moves to Atalanta". juventus.com. 29 August 2014. Retrieved 31 August 2014.
- "Relazione finanziaria annuale al 30 giugno 2015" (PDF (1.24MB)) (in Italian). Juventus F.C. 1 October 2015. Retrieved 11 October 2015.
- "FREDERIK SÖRENSEN JOINS 1. FC KÖLN". 1.FC Köln. 1. FC Köln GmbH & KGaA. 11 July 2015. Archived from the original on 12 July 2015. Retrieved 11 July 2015.
- https://fc.de/fc-info/news/detailseite/details/fc-verlaengert-mit-leistungstraegern/ 1.FC Köln, 11 January 2017. Retrieved 24 May 2018.
- http://www.spiegel.de/sport/fussball/1-fc-koeln-bundesliga-abstieg-ist-besiegelt-a-1205358.html Der Spiegel. Retrieved 24 May 2018.
- "U/17 landsholdet slog til igen mod Portugal". Danish Football Association (DBU) (in Danish). 5 December 2008. Retrieved 8 November 2010.
- "Endnu en sejr i Portugal". DBU (in Danish). 2 December 2008. Retrieved 8 November 2010.
- "Sjældent nederlag til U/17". DBU (in Danish). 10 February 2009. Retrieved 8 November 2010.
- "U/18 tog 3. pladsen i Tjekkiet". DBU (in Danish). 20 August 2009. Retrieved 8 November 2010.
- "Denmark 2-1 Montenegro". eurosport.co.uk. 8 June 2015. Retrieved 13 November 2015.