Wales centre Jamie Roberts admits that he has been through "more lows and highs" in his time playing against Ireland.
Roberts will line up against the men in green for the eighth time this Saturday, having enjoyed Rugby World Cup and Grand Slam success over his "good mates" in the opposite side.
Overall though the Racing Métro back believes his record facing Ireland is more negative than positive.
"When you always come up against the Irish, there is always kind of that edge to it," said Roberts.
"We are good mates off the field, and certainly on the field down the years there have been some great games.
"Looking back on a personal note, though, there have been more lows than highs against them. That is something I am quite keen to rectify.
"I remember the quarter-final of the (2011) World Cup and 2012 (Six Nations) as very good memories, but I will never forget 2009 (Roberts went on as a first-half replacement for full-back Lee Byrne) watching Ireland win the Grand Slam in our stadium.
"That is one of those moments in your career that drives you and motivates you I suppose. It's something you never want to happen again.
"And certainly the last two years, playing at home in 2013 we got blown off the field in the first-half, and last year it wasn't pretty, it was a poor loss out there (in Dublin)."
Roberts also knows that the outcome of Saturday's meeting could be another major disappointment, or a memorable win to look back on in the future.
"It is one of those games that will stick long in the memory, whether it is a win or a loss," he added.
"It is one of those big games that do not come around too often in your career. It is against a team that is the best team in Europe at the moment.
"It is why we play the game, it's why we do what we do. You play the game to wear that jersey for Wales and play in the biggest games of all. This is a huge match.
"If we win, we stay in the hunt for the championship. If we lose, we are out of it. We play a formidable team who have a way of playing the game. Their attacking kicking game, their tactical kicking game – certainly from the half-backs – is very evident.
"They always come up with a trick play or two, so we have to be prepared for that.
"It is who blinks first, but it is also who dares wins as well. It is a bit of a game of chess these big games."