Following a 27-20 loss to the Springboks in a chaotic first Test, Farrell has opted to shake things up in his pack with Tadhg Beirne shifting to O'Mahony's blindside flanker role and James Ryan coming into the second row.

While conceding that O'Mahony was "not happy obviously" to being benched, Farrell praised his tour captain for putting the needs of the team "at the forefront of his mind constantly", comments which were echoed by Doris.

"I've leaned on them [the leadership group] at times but particularly Pete," added Doris.

"Obviously it's tough for him going from a starting position last week to a bench position this week but he's led unbelievably through the week and has been a massive helping hand for me.

"When he comes on, I'm sure he'll do the same."

Farrell was disappointed with Ireland's performance last week, particularly in the first half.

But Doris says the team had a good meeting on Wednesday about where they need to improve as he called on his team-mates to show "edge" and "aggression" on Saturday.

"I feel the lads have a bit of an edge off the back of that as well," he added.

"We've also spoken about our calm and doing things our way which we can't go away from either.

"It's trying to strike the balance between being calm and doing things how we do them but also showing a bit of edge and aggression as well."