Career
2011-2012 season
He made only one other league appearances that season, also off the bench but he made another two Cup appearances against Zagreb also. After manager Balakov left Hajduk, new manager Mišo Krstičević came to the Hajduk bench. Since Krstičević managed the Hajduk U-19 team before he knew how to use Milić for the next season.
2012-2013 season
In the 2012-2013 Prva HNL he started as a first team regular.
He played a significant role in defeating Inter Milan 2-0 on San Siro in the 2012-2013 Union of European Football Associations Europa League. He showed great talent while playing in the Prva HNL and many people consider him on becoming the leading Croatian defender.
Antonio Milić and Josip Radošević together created the best double pivot couple in Prva HNL. During Hajduk"s winter preparations he suffered an injury which kept him off the pitch for nearly 2 months but he returned and helped his team to reach the 2012-2013 Croatian Cup final by scoring the equalizer goal in the away match against Slaven Belupo on Poljud. In May 2013 Antonio signed a new contract with Hajduk that would keep him with the club until 2015.
2013-2014 season
Under new manager Igor Tudor, Antonio"s role in the team changed and was somewhat reduced.
He was deployed either at left back or at center back and made 22 appearances in all competitions. 2014-2015 season
On December 20 2014,it was announced that Milić will join the Belgian club K.V. Oostende for a fee of 500 thousand euros.