Munster’s Keith Earls hands off Cian Healy of Leinster during a derby game. Photograph:  Billy Stickland/Inpho

(...) rugby and the one constant driving force for the Celtic League/Pro12 in all its various guises. Where(...)

(...).50pm Previews Football Focus SOCCER Sky Sports 1 from 12.30pm (12.45) St Mirren v Celtic RUGBY(...)

Rob Kearney of Leinster and Andrew Trimble of Ulster contest a high ball during last season’s Pro12 semi-final at the RDS. Photograph: Ryan Byrne/Inpho.

Maybe, just maybe, the Celtic League/Magners League/Rabo Pro12/ Guinness Pro12 has come of age. As(...)

Johnny Sexton’s mooted return from France to play for Leinster next season has been welcomed even by rival provinces. Photograph:  Alan Crowhurst/Getty Images

The great and the good of Celtic and Italian rugby assembled for the launch of the Guinness Pro12(...)

Pro 12 holders Leinster celebrate defeating Glasgow Warriors in the final last season. Photograph: Inpho

JOHN O’SULLIVAN The official announcement of Guinness as the new sponsors of the Pro 12 tournament(...)

 Brian O’Driscoll, Leinster leaves the pitch against Glasgow Warriors, in last season’s  Pro12 final in the RDS. Photograph: Dara Mac Dónaill/The Irish Times

(...). Celtic Rugby also today announced the Pro12 fixtures for next season (2014-2015) with the opening weekend(...)

Guinness have been a long-time sponsor of the autumn international series. Photograph:  Dara Mac Dónaill

(...) of the Guinness Pro12 likely to following directly after the 22-match league format concludes.Celtic(...)

 David Humphreys is to leave Ulster for Gloucester. Photograph: Inpho

(...), the Celtic Cup and the Celtic League, will join former Ulster prop John Afoa at Gloucester after the(...)

“It’s three years we’ve been building towards this. Everything is in place; it’s our task to get the job done,” said Ryan Grant of Glasgow Warriors during the week. Photograph:  Ian MacNicol/Getty Images

(...) frustrating tale of woe in this play-off phase of the RaboDirect Pro12 tournament. On four occasions in the(...)

Rory Best, out since the Heineken Cup quarter-final defeat at home to Saracens six weeks ago, could make the Ulster side to meet Leinster in the RaboDirect Pro12 semi-final at the RDS on Saturday. Photograph: Darren Kidd/Inpho/Presseye

Ulster are set to receive a timely boost in advance of Saturday’s RaboDirect Pro 12 semi(...)