Antonić, a UEFA Pro License holder, was appointed by Kitchee as head coach in 2005 and successfully led the team to two trophies in the league on his first year of duty, winning the Hong Kong League Cup and Hong Kong Senior Shield Cup. He led the team to defend their Hong Kong League Cup in 2006, during his second year of duty. He managed Kitchee towards qualification for 2008 AFC Cup.
Kitchee went through to Asian Football Championship 2008 qualification
Elected as Hong Kong "Coach of the Year 2005-2006“
Won the 2nd Place of Hong Kong League 2006-2007
Won the 2nd Place of Senior Shield Cup 2007-2008
Kitchee FC friendly games against:
- Shanghai Shenhua FC - Hong Kong Selection vs Barcelona FC He was elected as the 2006 Hong Kong Coach of The Year and also appointed to be a coach of Hong Kong League XI for the annual Carlsberg Cup. After leaving Kitchee, expansion club TSW Pegasus appointed Antonić as their new Deputy Team Manager & Youth Development. Antonić has been appointed to coach the Hong Kong National Team as preparation for the 2011 Asian Cup qualifiers. And with Hong Kong National Team, he won the 31st Guangdong Cup 2008. He has been nominated as a consultant of the Hong Kong Law Society Football Team.
Antonić left his post as head coach of Tuen Mun in the middle of the 2011–12 Hong Kong First Division League season and joined Arema FC as their manager. Coaching Arema FC for only 6 months and he was voted by the soccer news website, Goal.com, as "The Best Coach 2011–2012" of the Indonesian Premier League as he brought Arema FC to go through to the quarter final of AFC Cup 2012 and make the country proud.
Achievements with Arema Indonesia FC
Won against Kitchee FC in the knockout stage of AFC Cup 2012, and went through to the quarter final round
Voted as “The Best Coach of Indonesian Premier League 2011-2012”
Voted as “The Coach of The Month” by the AFC
After left Arema FC, Antonic was appointed to be head coach of Pro Duta FC and continued shining.
Achievements with Pro Duta FC
Champion of the Indonesian Premier League 2012-2013
Champion of the Indonesian Premier League Super Cup 2012-2013
Voted as “The Coach of the Year” 2012-2013
Finished his contract with Pro Duta FC, Antonic signed a two-year contract with Pelita Bandung Raya on 20 November 2013. On 9 September 2014, he got his contract extended until 2016.
Antonić returned to management on 31 October 2016, signing a 1.5 year contract at South China as manager. The club managed to finish 4th in the league and reached the finals of the :zh:2016–17年香港足總盃|2016-17 Hong Kong FA Cup. Following South China's decision to voluntarily relegate, the contracts of the entire coaching staff were terminated. On 4 July 2017, Hong Kong Rangers Director :zh:李輝立|Philip Lee announced that Antonić would be the club's new manager. On 28 March 2018, Borneo announced that Antonić would be the club's new head coach after sacked their previous head coach After left Borneo FC, Antonic signed with Madura United FC.
Achievements with Madura United FC
Elected as Best Coach for two weeks in a row
Personal life
Antonić married his Indonesian fiancee, Venna Tikoalu. Venna gave birth to their son Stefan Antonić on 6 February 2001 in Hong Kong. Antonić has another older daughter who is living and studying in Serbia.
Games of Hong Kong team coached by Dejan Antonić and Goran Paulić