Treviso recorded their first win of the season as they beat Zebre 26-16 in the Italian PRO12 derby in Parma.
Ospreys had to fight hard to record a 17-15 win over Scarlets and return to the top of the PRO12 table.
Despite Ospreys' 17-15 win over the Scarlets, fly-half Dan Biggar apologised for his team's poor performance.
Glasgow beat Scottish rivals Edinburgh 16-6 in the first leg of the 1872 Cup.
Glasgow skipper Alastair Kellock was proud of his side's defensive efforts after their 16-6 win against Edinburgh.
Munster won their Boxing Day PRO12 derby with Leinster 28-13, scoring three tries to go with 13 points from the boot of Ian Keatley.
Ospreys coach brings in Dan Lydiate for his debut start in the only change to the starting line-up.
Ulster withstood late Connacht pressure to run out 13-10 winners in the Guinness Pro12 on Boxing Day.
Alastair Kellock returns to the Glasgow starting line-up for Saturday's derby against Edinburgh, live on Sky Sports.
Newport Gwent Dragons claimed just their second away win over Cardiff since the
inception of regional rugby at a packed Arms Park.
Uncapped Newport Gwent Dragons centre Tyler Morgan has signed a national dual contract with the Welsh Rugby Union.
Leinster travel to Munster, Ulster host Connacht and Cardiff Blues take on Newport Gwent Dragons on Boxing Day.
Wasps director of rugby Dai Young claims Jimmy Gopperth could be on his way to the Ricoh Arena.
Ospreys have boosted their depleted forward ranks with the signing of Fiji international second row Tevita Cavubati.
Justin Tipuric has committed his future to Ospreys by signing a new three-year contract with the club.
In his final column of 2014, Stuart Barnes looks at why relegation and promotion are vital for growth and development.
Devin Toner has signed a new two-year deal with the IRFU that will see him remain at Leinster until the summer of 2017.
Cardiff Blues lock Teofilo Paulo and Scarlets forward Joe Snyman have been cited for foul play.
Newport Gwent Dragons must wait to see if Taulupe Faletau will be fit to face Cardiff Blues after he was injured against Zebre.
Watch all the highlights of this weekend's Guinness PRO12 action.
Paul O'Connell talks to SSN HQ about Ireland’s tremendous 2014 and the 2015 World Cup.