Irish captain Paul O'Connell praises his side's discipline

Ireland captain Paul O'Connell highlights the importance of discipline in his side's 26-3 victory over Wales in the Six Nations.

"That is a big focus of Joe's coaching and a great way to put a team under pressure," said O'Connell after the game in Dublin.

"We were able to capitalise on their errors, but we have tough tests still to come at Twickenham and in Paris," added the Irish skipper.