Kolarov had been appointed as sporting director of Pisa last month, but he has now left the job to move into fulltime coaching.
Kolarov will be tasked with leading Serbia towards the 2027 European Championships, which his national team will play at home.
The 38 year-old played for Manchester City, Lazio, Roma and Inter Milan, before retiring in 2022.
Kolarov was presented to the local press as new Serbia U21 coach by their FA president Dragan Djazic on Friday.
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Manchester City
Milan
Internazionale
Kolarov
saubilpstz
1
my best
Zicceklnst
0
saliba better than kolarov
faecelsuyz
1
why showing the current crop of players rather than showing the pictures of former team where Koralov played.?
youngfarmer_10
2
That’s amazing start though
baudekosy
2
Man City is Win to Win
Kucbcitu
1
Good luck bro 💪
Cieeloruz
2
good luck