With Ireland's injuries and suspension and Argentina's great recent form, Sunday's World Cup quarter-final between the countries is on a knife-edge.

But former Ulster and Ireland flanker Stephen Ferris is confident about Ireland's potential progress, judging by his prediction backstage at tonight's Off The Ball's 3 Arena Roadshow:

.@StephenFerris6 #IREvARG prediction is music to our ears #OTB3Arena pic.twitter.com/Oly73mJmAE

— Newstalk Sport (@NewstalkSport) October 14, 2015