Donal Lenihan: Three key challenges for Ireland's Stadio Olimpico clash

Ireland are facing a mental, as much as physical, test, writes Donal Lenihan.

1. Set defensive marker

Despite all the success Ireland had in 2016, the team still conceded 36 tries in 12 tests. That is too many for a side as good as this and it means that to win games, they have to score a lot of points themselves.