That said, after reports indicated Munster’s attack coach would lead ... “That’s the best 40 minutes of rugby we’ve played all season,” added Costello of that first half.

Given there has been Premiership opposition in Saracens and Northampton on Munster minds in the last couple of weeks, that input has been valuable. "He's unbelievably up to date with modern rugby ...

Leinster secured a convincing 28-7 victory over Munster in a highly anticipated ... Leinster's position as a dominant force in Irish rugby.

Munster hope to have Peter O’Mahony, Conor Murray, Diarmuid Barron and Jack O’Donoghue back from injury for their crunch Champions Cup pool clash with Saracens at Thomond Park on January 11 ...

A general view before the Investec Champions Cup Pool 3 match between Munster and Saracens at Thomond Park in Limerick. Photo by David Fitzgerald/Sportsfile Munster got their Champions Cup ...

Munster v Leinster (19:35 GMT) The teams are finishing off their warmups as Thomond Park begins to fill up. For late December, it's a relatively mild, dry night - ideal conditions for rugby.