[2] On 25 April 2017 the club announced, that Mortensen had been promoted permanently into the first team squad.
[3] A month after his arrival, Mortensen was not able to play due to infectious mononucleosis and was out indefinitely.
[4] On 27 June 2019 his contract was terminated by mutual consent after playing only two games for the club.
[5] Skive IK announced on 4 July 2019, that Mortensen had joined the club on a 1-year contract.
[6] On 16 June 2021, after two season in Skive, Mortensen signed a three-year deal with Hobro IK.