England backs coach Andy Farrell says the country's younger players still have every chance of claiming a place in the World Cup squad.
Joe Launchbury is targeting a return to action against Leicester on May 9 as he enters the 'crunch phase' of his rehabilitation.
Welsh rugby's medical chief believes concussion is the "number one issue" the sport needs to address.
Ulster and Ireland centre Stuart Olding has been ruled out of the World Cup after suffering a knee injury which will keep him out of action for nine months.
Leicester and England centre Manu Tuilagi is likely to miss the rest of the season with his groin injury.
France centre Gael Fickou faces a fitness race ahead of the World Cup having picked up a knee ligament injury.
Mike Brown tells Sky Sports that there are more positives than negatives for England to take from the 2015 Six Nations.
Ireland captain Paul O'Connell has been named 2015 Six Nations player of the tournament a week after lifting the trophy.
Scotland's Alex Dunbar could miss the Rugby World Cup after undergoing surgery to repair ruptured knee ligaments.
Leicester and England flanker Tom Croft could miss the Rugby World Cup because of a serious shoulder injury.
He narrowly missed out on a Six Nations title but Jonathan Davies has three other trophies in his sights in 2015.
Wales' head of physical performance Adam Beard is leaving the role to take up a job in the NFL.
A fourth successive Six Nations runners-up spot for England is “unacceptable”, Rugby Football Union chief executive Ian Ritchie says.
We take a look at which players shone in which department during the 2015 Six Nations.
Stuart Barnes reflects on an incredible final day to the Six Nations Championship and picks his team of the tournament.
Stuart Lancaster is convinced England can win the World Cup despite suffering Six Nations heartbreak again.
Mike Brown has paid tribute to France for the part they played in Saturday’s incredible finish to the Six Nations.
Sean O'Brien is already targeting Irish success on the World Cup stage after learning valuable lessons in the Six Nations.
England beat France 55-35 but fell agonisingly short of wrestling the Six Nations Championship away from Ireland.
Ireland have won the RBS Six Nations trophy after a 40-10 win over Scotland put them top of the table.