Ireland Number 8 Caelan Doris revealed South Africa's innovative seven-one bench split won't have much of an impact on their preparation for their Rugby World Cup clash.

Doris insists Ireland will not be deviating from the approach which has brought 15 successive Test wins.

"It doesn't actually change too much," he said.

"We talk about delivering an 80-minute performance regardless of who we are playing and knowing that some teams target the last 20 minutes.

"We also speak of our bench coming on and not just fitting in but actually taking it up a level. That will be important for us this weekend."

Ireland, who have topped the Test rankings for more than a year, can seal progression to the World Cup quarter-finals with success in the French capital.

Doris feels better equipped to deal with the pressures of performing in front of a capacity Stade de France crowd than during last year's Six Nations when Farrell's men suffered a 30-24 loss to France.

"There's so much belief amongst this group and there's belief that we can still get a lot better," he said.

"Delivering that in such a big game in Paris in front of 80,000 people – hopefully there will be a lot of Irish there – is just about constantly getting better as a group and believing that we can improve quite a bit.

"We are always striving for the perfect performance."

Referring to the 2022 defeat to Les Bleus, he continued: "From the warm-up there was a palpable intensity in the atmosphere from the French in particular, drums banging and stuff like that.

"Having experienced it once, it is an easier thing to visualise and be aware of. It will be a little bit less of a shock for me."