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With three consecutive games on Saturday, the finale of the RBS Six Nations championship is shaping up to be a real thriller.
England, Ireland and Wales could all lift the trophy, while even France retain a slim chance, with so many permutations in the mix.
The World Cup is just six months away, so expect a rousing climax culminating in England's match against France at Twickenham at 5.30pm.
Here's our video guide on all you need to know ahead of Saturday's RBS Six Nations extravaganza.