Johnny Sexton, Alun Wyn-Jones, Stuart Hogg, and Dan Biggar have all retired from Test rugby, while Owen Farrell and Antoine Dupont have declared themselves unavailable for selection.

The first tournament following a World Cup is typically a moment of transition as northern hemisphere teams begin a new four-year cycle.

So, who will fill the vacuum by 2024? BBC Sport examines four young players eager to make their mark in the Six Nations.

George is excited to ‘bring smiles on fans’ faces’ again.
Six Nations fixtures and BBC coverage details.
Rugby Union Daily Podcast: The Big Six Nations Preview