It was a harsh lesson for Mayo last Sunday as an understrength side were thought a lesson by a hungrier Cork side in round one of the National Football League. In this weeks www.advertiser.ie Mayo GAA podcast, Mayo Advertiser Sports Editor Colm Gannon and former Mayo player and www.advertiser.ie columnist John Casey look back over that defeat on Leeside and look forward to the visit of Dublin to MacHale Park on Saturday night.