Sam Johnson will make his international bow when Scotland start their Six Nations campaign against Italy.
With Rob Kearney not fully fit, Robbie Henshaw will revert to full-back when Six Nations champions Ireland do battle with England.
Manu Tuilagi is back in the England side to face Six Nations champions Ireland almost five years since his last Test start.
Former Brumbies captain Sam Carter says the opportunity to join Ulster was "too good to turn down".
Nemani Nadolo has called time on his Fiji career at the age of 31, revealing he had been contemplating the decision for a long time.
Stuart Hogg believes Scotland are on the cusp of "something incredibly special" as they attempt to improve on a third-placed finish.
Italy coach Conor O'Shea sees reason for optimism ahead of their Six Nations campaign, and is taking inspiration from Scotland.
France's Six Nations squad contains a wealth of young talent, with Romain Ntamack far from the only exciting prospect.
Warren Gatland's final year in charge of Wales promises to be exciting, with the team hitting form ahead of the Six Nations and a World Cup.
A determined Owen Farrell can be key to England's hopes in the Six Nations, and Omnisport has looked at why.