Iain Henderson has put pen to paper on a new deal with the Irish Rugby Football Union until June 2021.
Wales wing George North missed a Northampton training session this month and has been punished by the Premiership club.
Following on from Rory Best's contract extension, Rob Kearney has agreed a deal with the IRFU until November 2019.
John Mulvihill has been named as Danny Wilson's replacement by Cardiff Blues.
Bath will have to play their final five matches of 2017-18 without Anthony Watson, who has been ruled out with an Achilles injury.
Set to join Toulon at the end of the season, injury looks to have ended Rhys Webb's time in Welsh rugby.
Having struggled for game time at Sale Sharks, Josh Charnley has moved back to rugby league and joined Warrington Wolves.
Karmichael Hunt can return for the Reds and and his country after Rugby Australia (RA) completed its investigation.
Jonathan Sexton says the retirement of Jamie Heaslip will make him savour Ireland's Grand Slam triumph all the more.
Montpellier suffered their seventh Top 14 loss of the season, Toulouse getting the better of the leaders.
Warren Gatland will look to manage the workload of Alun Wyn Jones and other British and Irish Lions ahead of the World Cup.
Liam Squire suffered a broken thumb in a derby win over Crusaders, dealing an early season blow to Highlanders.
With the help of Opta, we take a look at some of the best statistics from the 2018 Six Nations.
Heavy snowfall in Dublin means Ireland will not celebrate their Six Nations Grand Slam at the Aviva Stadium on Sunday.
The Waratahs trailed 20-10 at half-time but came storming home in sweltering conditions to stun the Rebels in Sydney.
Saturday's 11-point victory marked the first time since 2013 that the Reds won three successive games in Super Rugby.