The Government gave its formal backing to the idea of a regulator in April.
Sinfield’s previous two challenges have raised more than £5 million
The 27-year-old Glentoran winger was withdrawn ahead of Saturday's match against Kosovo after a historic video surfaced appearing to show the Glentoran winger singing an alleged pro-IRA chant. But McMenamin joined his team-mates on Sunday's flight to Athens after the Irish FA gathered more information regarding the video, which is understood to be almost a decade old and for which the former Cliftonville and Linfield player was punished by his club at the time. The issue is now being looked at by an independent disciplinary committee to determine if McMenamin has broken any Irish FA rules, but that is considered unlikely due to the age of the video.