He and several players of the team were arrested for alleged gambling and match-fixing scandals. In January, 2007, it was decided that Quyến would be sentenced to 2 years in prison, ending his hope of becoming a star player.
The individual along with some teammates faced arrest over allegations of gambling and match-fixing in January 2007. It was determined that Quyến would serve a two-year sentence, thus thwarting his aspiration to become a prominent player.