Six Nations set for grandstand finish as Wales eye Grand Slam on 'Super Saturday'
Wales will wrap up the title and complete their first tournament clean sweep since 2012 if they beat Ireland.
But defeat in their 14:45 GMT match in Cardiff would open up the title race.
Barring an improbably emphatic Ireland victory, England would lift the title by beating Scotland but a Scottish win would see Ireland retain the trophy.
Wales are aiming to land their fourth Grand Slam of the Six Nations era, with two already won under coach Warren Gatland, who is leaving his post after this autumn's World Cup.
