Leigh Halfpenny, Gareth Davies and Scott Williams are set to be absent when Wales get their Six Nations campaign under way.
Despite having an operation on his hand just a fortnight before the Six Nations begins, Owen Farrell expects to be fit to face Ireland.
A spectator who abused Simon Zebo during Ulster's Champions Cup meeting with Racing 92 has been given a lifetime ban by the Pro14 club.
Eddie Jones' England squad has been boosted ahead of the Six Nations with the return of Bath centre Jonathan Joseph.
Wales boss Warren Gatland is still weighing up what his next move will be when he leaves his role after the Rugby World Cup.
After only recently making a comeback following thumb surgery, Ulster's Iain Henderson is set to miss several weeks due to a finger injury.
Quinn Roux has been called up to the Ireland squad for their first two Six Nations matches after Tadhg Beirne was ruled out.
Hamish Watson has dropped out of Scotland's Six Nations squad with a hand injury, while four players have been called up.
The Waratahs hope Karmichael Hunt has put his off-field problems behind him after signing the utility back from the Reds.
Jack Nowell, Henry Slade and Luke Cowan-Dickie have all signed fresh two-year deals with Exeter Chiefs, it has been announced.