Ireland were sensationally upset by hosts Japan at the Rugby World Cup on Saturday, leaving Brian O'Driscoll stunned by their performance.
Japan defeated South Africa four years ago and Ireland great Brian O'Driscoll believes they could provide another Rugby World Cup upset.
England have beaten Wales and Ireland of late, prompting Brian O'Driscoll to identify the 2003 Rugby World Cup champions as "a huge threat".
Ireland have not matched the standards set in 2018, but Brian O'Driscoll believes they can hit form ahead of the Rugby World Cup.
Former Ireland centre Brian O'Driscoll has heaped praise on coach Joe Schmidt and says Andy Farrell is the right man to replace him.
Brian O'Driscoll knows Ireland need Johnny Sexton to be fit and firing if they are to make an impact at the Rugby World Cup... Read more
Andy Farrell will replace Joe Schmidt as Ireland head coach after the Rugby World Cup and Brian O'Driscoll has backed the call.
Ireland legend Brian O'Driscoll believes New Zealand are not as strong as they were four years ago as they head into a World Cup... Read more
Brian O'Driscoll thinks more big names could follow in the footsteps of Sonny Bill Williams by trying to qualify for the Olympic sevens.
Ireland legend Brian O'Driscoll heaped praise on the retiring Sam Warburton after the former Wales captain announced his retirement.
Ireland's last Test win in Australia came in 1979 but Brian O'Driscoll believes the Six Nations Grand Slam champions can down the Wallabies.
David Pocock and Israel Folau's differing views on gay rights could make for an uneasy dynamic in the Australia team, says Brian O'Driscoll.
Brian O'Driscoll sees no reason why Leo Cullen or Stuart Lancaster should depart Leinster even if their services are sought elsewhere.
Ireland legend Brian O'Driscoll believes the IRFU had "no option" in their decision to sack Paddy Jackson and Stuart Olding.
Ireland are the Northern Hemisphere's form team, but Brian O'Driscoll is aware that may not still be the case when the World Cup begins.
Ireland are the only side left in this year's Six Nations who can complete a Grand Slam and Brian O'Driscoll talked up their prospects.