Ireland v England: Three head to head match-ups that will determine Saturday showdown

Ireland’s lineout was supremely dominant over the Scots at Murrayfield six days ago but James Ryan’s head injury in that game is a big loss

Ireland's Keith Earls under pressure from Scotland's Huw Jones. Another similar performance from the Munster man can lead Ireland to victory

Keith Earls v Jonny May

You could name any of the back-three match-ups here because the aerial battle will be key between two teams who can test defences with challenging high balls. It has to be another reason why a fit-again Jacob Stockdale has replaced James Lowe on the left wing to match up with Anthony Watson but Earls versus May is an intriguing contest.