Ireland’s Paddy Jackson will chalk up a century of appearances for Ulster in tonight’s Guinness Pro12 clash with champions Glasgow, (Scotstoun Stadium, 7.45pm, TG4).

December will prove to be a busy month for Leo Cullen’s Leinster, as they face back-to-back European Rugby Champions Cup encounters against defending champions Toulon.

Connacht coach Pat Lam has described tonight’s Guinness Pro12 opponents, Glasgow Warriors, as “the Toulon of our competition”.

It's the day when the sporting community digs deep into its neglected imaginations, with mixed results.

Anthony Foley has made eight changes to his starting 15 as Munster travel to Scotstoun Stadium to face the Glasgow Warriors in the PRO12.

Robbie Henshaw will make his 50th appearance for Connacht when he starts for them against Glasgow Warriors on Friday night.

Glasgow 22 Leinster 20

Isaac Boss is set to make history at Scotstoun Stadium this evening, when he will become the first player to make 100 appearances for two Irish provinces in Leinster’s opening Guinness Pro12 encounter against Glasgow Warriors (kick-off 5.15pm).

Munster rugby fans will hardly have had time to digest their Christmas dinner when they will be heading to Thomond Park on St Stephen’s Day for the Guinness Pro 12 fixture that captures their attention more than any other – the visit of arch rivals Leinster to their famous Limerick headquarters.

RABO DIRECT PRO 12:

Damien Varley retains the captaincy for Munster's PRO12 semi-final against Glasgow Warriors on Friday night at Scotstoun Stadium, ko 7.35pm.

The Connacht team to face Glasgow Warriors in Sunday's round 13 RaboDirect PRO12 clash at Scotstoun Stadium (KO: 2pm) has been named.

They call it European rugby’s graveyard shift, but such are the myriad permutations surrounding Heineken Cup qualification this week, that kicking off at 12.30pm on Sunday could well suit Munster down to the ground.

Felix Jones has been ruled out of Munster’s Rabodirect Pro12 top of the table clash against Glasgow Warriors at Scotstoun Stadium on Friday night.

Glasgow 12 Leinster 6

Leinster team manager Guy Easterby has said players need to use last week’s Pro 12 draw with Ospreys as a driving force this weekend as they head to Glasgow on Friday night.

Ulster head coach Mark Anscombe has called academy players Alan O’Connor, James Simpson and Conor Joyce into his provisional squad ahead of Friday’s first versus second RaboDirect PRO12 game against Glasgow at Scotstoun Stadium (7.35pm).

Glasgow 27 Northampton 20

Ulster’s talismanic scrum-half Ruan Pienaar and destructive number 8 Nick Williams have been included in the starting line up for Friday's Heineken Cup Pool 4 match against Glasgow Warriors at Scotstoun Stadium (8.00pm).

Glasgow Warriors head coach Gregor Townsend is aware of the threat posed by Eric Elwood’s Connacht outfit who visit the Warriors new home Scotstoun Stadium on Friday night (7.35pm).

Glasgow 24 Connacht 3

The Super8 athletics competition due to be staged in Glasgow next week has been cancelled due to a lack of teams.

Glasgow Warriors head coach Sean Lineen is relishing the first match of the season at home to Leinster in the Magner’s League following their move to their new training centre at Scotstoun Stadium back in June.

SCOTLAND prop Moray Low has signed a two-year contract extension with Glasgow Warriors, handing the Magners League leaders a major boost ahead of tonight’s Heineken Cup clash with Newport Gwent Dragons at Firhill.

Scotland prop Moray Low has signed a two-year contract extension with Glasgow Warriors, handing the Magners League leaders a major boost ahead of tomorrow night’s Heineken Cup clash with Newport Gwent Dragons.