Saracens have tied Maro Itoje down to a new deal that will see him prolong an association with the club that has already lasted 10 years.
Scotland will be without Hamish Watson when their Six Nations campaign begins on February 2.
Owen Farrell got the better of Rory Best on Wednesday, as the England and Ireland captains played Connect 4 ahead of the Six Nations.
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.
Wasps saw three England squad members suffer injury scares on Sunday but Dai Young does not foresee any issues ahead of the Six Nations.
Any hopes Toulouse had of snatching top spot in Pool 1 were extinguished as Leinster defeated Wasps to secure a home quarter-final.
Eddie Jones claims Jonny Sexton is the only one allowed to "pick up the red phone and talk to referees."