Besides his club career, Crone has represented Denmark at youth levels between U16 and U20.
Career
Brøndby
Crone signed a three-year extension to his contract on 18 September 2013 which ties him to Brøndby until the summer 2017 and secured him a slot in the first team from the summer 2014.[2] Crone was, despite his status as U19 player, brought into the first-team squad during the winter training camp during January 2014 in the United Arab Emirates. He made his first unofficial first-team appearance during that training camp, in the 73rd minute of a friendly against defending Ukrainian champions Shakhtar Donetsk in Abu Dhabi, where he came on as a right-back.[3]
Crone was eventually officially included in the first-team squad on 1 July 2014.[4] He made his official debut for Brøndby in a Danish Cup match against Fremad Amager on 29 October 2014, and on 27 November he signed a contract extension, keeping him at the club until the summer of 2017.[5] Appearances were, however, few and far between, and on 2 February 2015, the last day of the transfer window, Crone was sent on a six-month loan to Brønshøj Boldklub in the second-tier 1st Division.[6]
Crone made his first European appearance after returning to Brøndby from his loan, coming on as a late second-half substitute for Lebogang Phiri in a 0–2 away win over Sammarinese club Juvenes/Dogana in the first qualifying round of the 2015–16 UEFA Europa League.[7] He made his debut in the Danish Superliga for Brøndby on 13 March 2016, when he came on as a substitute in the 46th minute instead of Martin Ørnskov in a 1–0 win at home over Randers FC.[8] He subsequently played the following three successive matches in the Superliga as a substitute,[9] and in the second last matchday of the season he made his first start and played the entire match against Hobro IK.[10]
On transfer deadline day, 1 February 2021, Crone joined Lyngby Boldklub on a deal until the June 2023.[15] He made his debut for the club on 7 February in a 1–0 away loss to AGF, coming on as a substitute in the 63rd minute for Kasper Jørgensen.[16] He suffered relegation to the Danish 1st Division with the club on 9 May 2021 after a loss to last placed AC Horsens.[17]