Damien Duff remains in the hundred club for Republic of Ireland

Damien Duff: Always on the back foot. Spent most of the evening providing cover to John O’Shea. Never got far enough forward to influence the game. 6 (GETTY IMAGES)

Damien Duff has retained his status as the fifth Republic of Ireland international to reach 100 caps despite being told he might not have completed a century after all.

The 33-year-old Fulham midfielder captained his country against Italy in their final group game at the Euro 2012 finals in Poznan on 18 June to reach three figures.

However, a report claimed that the warm-up game against Hungary on 4 June in which Duff, who announced his retirement from international football last month, played, may not be recognised by Fifa because of a discrepancy with the match officials.

Doubt arose over the presence of the assistant referee David Vang Andersen on the touchline, who is not on Fifa's current list of referees.

But the Football Association of Ireland has confirmed it has discretion to award caps for the friendly and has done so.