Italian club players will now have the opportunity of playing against Welsh teams in the Magners League as well as in the Heineken Cup.
The Welsh Rugby Union has welcomed the initiative to introduce two new Italian teams to the Magners League from the start of next season 2010/11.
According to the WRU the move will strengthen the Magners League competition and prove a major incentive to attract new support.
Welsh Rugby Union Group Chief Executive, Roger Lewis, said: "We are delighted to welcome Italy into this great competition.
"For the last two years it has been our ambition to deliver an enhanced tournament which will expand and continue to develop as a showcase for some of the very best of northern hemisphere rugby.
"It will prove a great incentive for all four Welsh Regions to test themselves against teams from a nation which is emerging as a real strength in the European game.
"Moreover, involvement in the Magners League will serve to strengthen Italy's position in the RBS 6 Nations tournament.
"The new, twelve team Magners League format across four nations will provide players, supporters and television viewers with an opportunity to savour some great fixtures.
"Our players already enjoy great rivalry with Italian opposition both internationally and through the existing cup competitions so the time is right to extend and develop that link through the Magners League.
"The inclusion of two Italian superteams will also add a new and important European dynamic to a competition which has become a powerbase of the professional game.
"I personally want to thank my colleagues from Celtic Rugby and all the other unions involved for their hard work and resolve to achieve this.
"I particularly want to thank Stuart Gallacher of Regional Rugby Wales who has worked tirelessly alongside me during the ongoing debate and discussions.
"Throughout the year long review and the more recent negotiations we have remained determined to ensure we achieved a great outcome for northern hemisphere rugby.
"This announcement will start an important new chapter for Welsh rugby and will will serve to encourage further support and widen the appeal for our national sport."
The Half a Game initiative is currently sweeping across Wales and proving a major success. The scheme aims to give every young player at least half a game every weekend. WRU TV recently visited a festival in Narberth where clubs have fully embraced the initiative.
Both Bargoed and Swansea were seeking their first win of the Principality Premiership season this afternoon. It proved a fruitful day for the hosts - not only did they win, but Bargoed claimed a try bonus point.
Cardiff managed to keep their unbeaten record at home intact, but only just as Bridgend made them work extremely hard before the Blue and Blacks secured a hard fought Principality Premiership win at the BT Sport Arms Park last night.
Former Wales back row Andy Powell gives a guided tour of The Wern, home of Merthyr RFC, who are determined to prove a lot of people wrong and make their mark in their first season in the Principality Premiership.
Wales Sevens head coach Gareth Williams looks back on the Rio Sevens success where he helped GB win silver. He believes the successful campaign is a huge boost to his Welsh squad as they prepare for another World Series, as WRU TV's Graeme Gillespie discovers
British and Irish Lions head coach Warren Gatland will be heading back home to take on the All Blacks next year where for him, success for 2017 is all about going to New Zealand and winning a Test Series.
Last week all roads led to Eugene Cross Park where defending champions Ebbw Vale hosted this season's launch of the Principality Premiership. WRU TV's Graeme Gillespie was there to capture the thoughts of Damien Hudd, captain of Ebbw Vale, and WRU Head of Performance, Geraint John.
Llandovery made it three in a row when they defeated Aberavon in the final of the National Foster's 7s at BT Sport Cardiff Arms Park on Sunday. On another eventful day of sevens, Newport claimed the Plate and the Dragons won the women's crown
Last week saw Cardiff welcome players from around the world for the 21st Golden Oldies Festival. The tournament features players over 35 years of age, and this year's event saw a select few represent the WRU in a 'friendly' against the Wooden Spoon.
Wales Under 18 captain Callum Bradbury is delighted to have seen his side claim a narrow 18-17 victory against a strong SA Schools 'A' side to end the three-match Under 19 International Series in South Africa on a high note.
The Wales U18 squad spent an emotional day in the drug-riddled townnship of Hout Bay. Hout Bay Warriors President Fred Johannes said the visit was 'the talk of the town' and will dream about the day everyday for the rest of his life.
RGC 1404's new head coach Mark Jones is hoping to build 'something special' in north Wales and is already looking forward to the development region participating in the Principality Premiership for the very first time.