Owen Farrell will miss England's World Cup pool matches with Argentina and Japan.
The out-half was given a four-match ban last night by an independent appeal committee.
They found the downgrading of the red card he received against Wales 'manifestly wrong'.
Ireland meanwhile are in France preparing for Saturday's concluding World Cup warm up game against Samoa in Bayonne.
The coaching staff are waiting on a fitness update around hooker Dan Sheehan - he has a foot injury.
Jimmy O'Brien knows it's an important week with the World Cup squad of 33 to be announced next Monday.
"Obviously everyone is trying to make the final squad, but you can't think about that too much.
"You hopefully get picked to play a few games and try and put your best foot forward.
"There's a bit of a different feel, being away in France with the weather and that. I think it's good preparation for the World Cup, and playing in this heat."