Recently appointed Leinster assistant coach Stuart Lancaster has marked Munster's danger men before they take on their Irish rivals this weekend.
Lancaster, who joined the Leinster back-room coaching staff last month, says that his team must be wary of the impact that Irish internationals Conor Murray and CJ Stander can have when the two sides clash on Saturday.
"I am just getting into the detail of analysing them … They have some hugely influential players and a very effective kicking game. Their defensive system has improved from last season, I can see that already from just the few games I’ve watched. They have a physical, abrasive pack who like to take teams on around the fringes," Lancaster told The Irish Times.
"Conor Murray is clearly key in terms of the accuracy of his kicking game. CJ Stander is pretty influential as well obviously. But we are going to be tested all over the park. The key for me is we need to make sure we get ourselves ready. That is why I have focused over the past fortnight on getting our detail right. That is what the majority of my time has been spent on. Because I know that if our team get their details right, with the quality of players that we have, we’ll be tough to beat."
Lancaster lauded the big Irish derby as one of the greatest rivalries in Europe.
"My background over here is limited in terms of club rugby but my perception, having been watching from afar over the last seven, eight, nine years of my coaching career, is this is right up there with any of the games I have just managed. In the UK and Ireland, Leinster and Munster is top table in terms of derbies and so it should be. It will be nice to go back to the Premiership. I’ve not been there for a while and such a big crowd will make a fantastic occasion."