England captain Owen Farrell has made adjustments to his technique as World Rugby tries to clamp down on high tackles and shoulder charges at the Rugby World Cup
Wales have been covering rugby balls in baby oil to prepare for humidity in games at the Rugby World Cup in Japan.
Robbie Henshaw remains in Ireland's World Cup squad despite the injury that looks certain to rule him out of the opener against Scotland.
Poor discipline could be the only "chink" in England's chances of winning the Rugby World Cup, says former head coach Sir Clive Woodward.
Audio & Video
BBC World Service's Sportsworld brings you a special podcast previewing this year’s Rugby World Cup in Japan.
Trash talk, haka challenges, new stars burning bright and nation-uniting triumphs - how much do you remember of these iconic Rugby World Cup moments?
The inside story of England's past four Rugby World Cup campaigns, from victory in 2003 to pool-stage defeat in 2015, from the men who were there.
Around the UK
Rugby notifications, social media and more
Get latest scores and headlines sent straight to your phone, sign-up to our newsletter and learn where to find us on online.
How to get into rugby union
How to get into rugby union - through the age groups up to the 15-player game or try rugby sevens, which made its Olympic debut in 2016.
Live guide, clips and podcasts
Enjoy the best debate, analysis and interviews with BBC 5 live and World Service plus our rugby union commentary listings.