A group of fans threatened him via social media, while teammate Jordi Amat had just completed the procedures to join a new club in the domestic league.
After leaving Wolverhampton in June, Justin Hubner has yet to find a new team. He was previously loaned to Cerezo Osaka in Japan, but his short-term contract has expired.
The situation of falling into unemployment has many fans worried about the performance and stability of the Indonesian team's defense in the final qualifying period of the 2026 World Cup in Asia.
On his personal page, Hubner posted a number of attacking and threatening messages from fans.
Some people expressed disappointment, saying that he did not make efforts to seek competition opportunities and could seriously affect the team.
Some fans even threatened to kill Justin Hubner because they thought he was "a shy player", "lazy" and "not trying to find a club to join the team to play".
Hubner personally said that he had received many words of encouragement from the very people who now turn to criticism, and affirmed that the negative comments could not change reality.
Not only Hubner, five other naturalized Indonesian players are also unemployed, including Thom Haye, Rafael Struick, Shayne Pattynama and Nathan Tjoe-A-On. The fact that many key players do not have clubs before the important qualifying round makes fans increasingly worried.
Meanwhile, Jordi Amat - one of the most experienced central defenders of the Indonesian team, joined Persija Jakarta club after 3 seasons playing for Johor Darul Ta'zim (Malaysia). This is considered the only positive signal among the group of naturalized players at the present time.
The incident surrounding Justin Hubner is raising big questions about the psychological pressure that naturalized players face when wearing the national team jersey, as well as the responsibility of fans in creating a more positive and fair cheering environment for those who are representing the country's football.