Ersan Gülüm

Gülüm progressed up the ranks after playing exceptional football for Hume City as an 18-year-old. He was originally transferred to Turkish Super League team Manisaspor in 2005, after being spotted by Leading Teams Operations Manager Ezel Hikmet and referred to experienced Turkish coach Ersun Yanal whilst playing for and captaining the Australian School Boys team touring the United Kingdom. Impressed with the raw talent of the young defender, Gülüm was a part of the senior squad for the entire season as a backup defender, but only managed 2 Super League and 2 Turkish Cup matches. Gülüm was transferred to Elazigspor in February 2008, where he managed to play in every match, gaining a reputation as a strong left footed defender. After a solid second half of the season, Gülüm was transferred to Adanaspor for the 2008–09 signing a lucrative three-year deal, where he played 30 League matches and was rewarded for his great form by being selected in the team of the year as the best central defender in the competition. On 17 July 2010, despite being heavily linked with Galatasaray, Gülüm transferred to rival Turkish club Beşiktaş with Adanaspor acquiring an option to loan Gülüm back for one season. After he had a productive season with Beşiktaş, they acquired Gülüm's full rights for a fee of €4 million.

On 17 July 2017, Gülüm transferred to Adelaide United on a season long loan from Hebei China Fortune Adelaide United announced that Gülüm had returned to Hebei China Fortune after…

Gülüm was born in Australia to Turkish parents, meaning that he was eligible to play for Australia and Turkey from birth as per the FIFA eligibility criteria.

Australia under-23s

Gülüm was involved in Australia's qualifying campaign for the 2008 Summer Olympics, he made his international debut for the Australia national under-23 association football team as an 84th-minute substitute replacing Ruben Zadkovich on 6 June 2007 away to Jordan in Ammam. In November 2010, it was speculated that he would be selected for Australia's friendly against Egypt. After the call-up did not come, Gülüm chose to represent Turkey and said that he often felt overlooked by Football Federation Australia: "For me it has been a case of being overlooked at all levels in the past for Australia, for whatever the reason has been."

Turkey

Former Australia head coach Guus Hiddink swooped and added Gülüm to the Turkish squad scheduled to play the Netherlands on 17 November 2010, although he did not make his international debut for the Crescent Stars in that match. The following month, Australia coach Osieck had met with Gülüm while the Australian men's team was touring Europe and stated that Gülüm was "very positive" about representing Australia. Gülüm was named on the 50-man shortlist for Australia's 2011 AFC Asian Cup campaign, but was not selected in the final 23-man squad. Osieck told the press that Gülüm's father "said Ersan should opt for Turkey because he plays in Turkey and…

Gülüm grew up in the Melbourne suburb of Meadow Heights.

Beşiktaş Süper Lig: 2015–16, 2016–17 Türkiye Kupası: 2010–11