[1] After the club relegated in the Serbian League West, Rosić started the 2015–16 as a first choice goalkeeper,[2] but due to injury he earned in the 10 fixture match, against Šumadija 1903 when he was substituted out,[3] he missed the rest of season.
[4] After a trial period he passed with the club, Rosić signed a three-year scholarship contract with Mladost Lučani in summer 2016.
[6] He made his debut for Mladost Lučani in 29 fixture of the 2016–17 Serbian SuperLiga season, played on 9 April 2017, when he was nominated for a man of the match against Čukarički.
[8] At the beginning of new season, Rosić stayed on the bench as an unused substitution in second leg of the second qualifying round for the 2017–18 UEFA Europa League, against Inter Baku.
[21] As a coach of the Serbian under-21 level, Goran Đorović included Marković to the squad for competitive matches against Macedonia and Russia in September 2018.