O'Connor, 24, is returning to Australia after a spell in Europe, where he featured for London Irish and European champions Toulon.
Richard Hibbard feels his move to Gloucester will give a chance to test himself in the best league in the world.
South Africa have called Warren Whiteley into their squad for the upcoming Rugby Championship Tests in Australia and New Zealand after fellow loose forward Willem Alberts was ruled out through injury.
Northampton director of rugby Jim Mallinder is confident Saints are well equipped for their Aviva Premiership title defence despite their lack of new signings over the summer.
The International Rugby Board will be renamed 'World Rugby' from November 19 in a move described by chairman Bernard Lapasset as a "mission statement".
England coach Stuart Lancaster will be without key front-row duo Dan Cole and Mako Vunipola for this autumn's QBE Internationals.
Bath head coach Mike Ford believes Sam Burgess' future in rugby union is in the back-row.
Argentina will be without the injured Pablo Matera for upcoming games against New Zealand and Australia.
Australia back Pat McCabe's playing career appears to be in the balance after he suffered a third serious neck injury.
Australia have called up Kyle Godwin to their 30-man squad for the Rugby Championship clash with South Africa.
Former England rugby captain Catherine Spencer believes there is still some way to go before the 15-a-side women's game follows the Sevens format and turns professional.
Cardiff Blues captain Matthew Rees is delighted at the prospect of playing alongside fellow Wales front row Adam Jones in the Guinness Pro12 next season.