Career
Football Club Kölane Mladenović made his debut for the Serbian national team in 2012. Borac Čačak
He played as left-back. Red Star Belgrade
Mladenović signed a four-year contract for Red Star Belgrade on December 17, 2011.
During the summer of 2013, Red Star participated in the Uhrencup in Switzerland, where they lost the final against Football Club Basel with a score of 2-1.
By the end of 2013, Red Star"s financial situation became very unstable as players and staff were not getting paid after several months of waiting. In spite of his frequent scoring and lanky frame, Mladenović was played mostly as a left back under coach Ricardo Sá Pinto, who said that Mladenović"s playing style reminded him of Fábio Coentrão.
An exodus began when Sá Pinto announced in an emotional press conference when he said that he could no longer work at Red Star due to instabilities in the team"s administration. On October 5, 2013, Mladenović filed a request to have his contract terminated with Red Star.
The Arbitration Committee in the FSS ruled in Mladenović"s favor on November 23, giving him the status of a free agent.
BATE Borisov
1. Football Club Köln
On 5 January 2016, Mladenović signed a three and a half-year contract with 1. Football Club Kölane
Mladenović made his debut for the Serbia national football team under coach Siniša Mihajlović on May 31, 2012, in a 2-0 loss against France.