Warren Gatland says that Ireland's status as the number two team in the world coupled with the success of Irish provinces in the PRO14 and Europe has fostered jealousy among their Welsh counterparts.
"They are No.2 in the world, and their provinces have been incredibly successful in the PRO14 and in Europe," the Wales head coach told WalesOnline.
"Sometimes it can breed a jealousy. You respect them but you are desperate to want to beat them.
"That sometimes creates the edge. I take my hat off to their provincial rugby and what they have achieved in Europe, the PRO14 and what the national team has done.
"We have got to strive to do that. That creates that competition. It is almost like a derby-type feeling.
"Our group of players get incredibly motivated to play against Ireland because a lot of them have been on the losing end on a number of occasions, particularly to their provincial teams."
In the final round of the Guinness Six Nations this weekend, Ireland have the opportunity to spoil the Welsh Grand Slam party in Cardiff. Just like Irish success motivates the Welsh, the chance to do so will invigorate Joe Schmidt's side.
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