Aleksandar Kolarov (Serbian Cyrillic: Александар Коларов, Serbian pronunciation: [alɛksǎːndar kɔlǎrɔʋ]; born 10 November 1985) is a Serbian professional association football defender playing for Premier League side Manchester City and the Serbian national team. Although primarily a left back, Kolarov can also operate anywhere along the left flank and is known for his overlapping runs on the wing and his ball striking ability. He had won the Serbian Player of the Year 2011. He is highly regarded by Real Madrid Coach,Jose Mourinho and also Pep Guardiola. He is touted to be the world best left back in future.
Kolarov's football career started in the Red Star Belgrade youth system. He spent five years in the club, but never made the first team.
During January 2004, eighteen-year-old Kolarov moved across town to Čukarički, which played in the top-tier Serbia-Montenegro League. Signing a three-year contract, he finished out the 2003-04 season in the club's youth setup and during summer 2004 got introduced to full squad. Making 27 league appearances in his debut season, the youngster left a good impression, but couldn't help the beleaguered team avoid relegation.