|Rugby World Cup warm-up: Ireland v Wales|
|Venue: Aviva Stadium, Dublin Kick-off: 14:30 BST, 29 August|
|Coverage: Live on BBC Radio Wales and Radio Cymru; Scrum V highlights on BBC Two Wales and iPlayer|
Alun Wyn Jones believes there is a danger of reading too much into the results of World Cup warm-up matches.
The British and Irish Lions lock captains Wales against Ireland on Saturday in the absence of regular skipper Sam Warburton, who has a slight shoulder injury.
Ireland beat Wales 35-21 in Cardiff in their first warm-up match on 8 August.
"When we get to the business end of the season a lot of them are going to count for very little in my eyes," he said.
"That's a personal opinion, but I think there's a danger of a lot of people putting a lot of emphasis on these pre-World Cup games and form off the back of the Six Nations.
"It's all about momentum and Ireland appear to have that with the wins they've got at the minute."
The Ospreys second-row said the recent matches between England and France illustrated how difficult it is to read too much into the warm-up games.
England beat France 19-14 in Twickenham on 16 August, but were beaten 25-20 in France a week later.
"Looking at the first game it was pretty much all England until the last 20 minutes and the second game was vice versa," added Jones.
"It's dangerous to read too much into these games with selections changing and venues changing.
"Ultimately it's about us going to the business end of the season and we need to keep our eye on ourselves."
Wales coach Warren Gatland will cut seven players from his squad when he names his final 31 for the World Cup on Monday, 31 August.