he would be donating his wages to charity. After nine games for the Dublin-based side, on 21 December 2015 he announced his retirement from football. International career Duff played for the Republic of Ireland national under-19 football team in the 1997 UEFA European Under-18 Football Championship finals in Iceland, the 1997 and 1999 FIFA World Youth Championship. In Malaysia, he scored the first ever Golden Goal in a World Cup match. He made his senior début for the Republic of Ireland in 1998 against the Czech Republic. He won 100 caps, making him the fifth most capped player in Irish history. He started a total of 82 times for the Republic of Ireland senior squad, scoring eight goals. He played every game for Republic of Ireland at the 2002 FIFA World Cup and was voted the team's player of the tournament. After scoring against Saudi Arabia, en route to the second round of the FIFA World Cup, Duff marked his goal with an oriental bow, in retrospect often referred to as one of the most memorable moments of his international career. He was named as the FAI Senior International Player of the Year in 2002. After a poor campaign, failing to qualify and a change of managers during the qualifiers for UEFA Euro 2004, he still scored two goals during the qualifiers against Georgia and Russia. He was ever present for the Republic of Ireland in their qualifying campaign for the 2006 FIFA World Cup, but yet again, they failed to qualify. Duff's former teammate Steve Staunton took over as manager but early defeats to Germany and a humiliating 5–2 loss to Cyprus saw the Irish fail to qualify again for a major tournament, followed by another change of manager. Under the new manager Giovanni Trapattoni, Duff started the manager's first game in charge against Serbia on 24 May 2008, which ended in a 1–1 draw. Duff became a key member of the squad proving assists for many of the goals. He started the matches in both legs against France as the Irish were controversially knocked out 2–1 on aggregate after extra-time. Duff was ever-present on the wings for the Republic of Ireland in their UEFA Euro 2012 qualifying campaign and he was part of the team that secured qualification for UEFA Euro 2012 with an unprecedented 5–1 aggregate play-off win over Estonia. He was named in Trapattoni's 23-man squad