Ireland flank Peter O'Mahony sighted his side's fight as being the deciding factor in their 26-3 victory over Wales at the Aviva Stadium on Saturday.
The 24-year-old was impressive for the hosts as they didn't let the Six Nations champions get into the game. And O'Mahony had reasons why.
"A lot of that has to go down to the fight and the want that we showed," said the back-row.
"At the end of the day we wanted it more than they did, that was evident by the end of it. I don't think the scoreline flattered us, but we fought for everything.
"That is where we need to be at, we need to be fighting for every 50:50 ball, everything that goes on the ground. They are the ones that make the difference."
Ireland crossed twice in Dublin as Chris Henry opened the scoring in the first-half off a driving maul before Paddy Jackson went over after the break. O'Mahony paid tribute to forwards coach John Plumtree for their opening score.
"John has put a big emphasis on our maul and our line-out, he wants us to be a great mauling and line-out team," said O'Mahony.
"You've guys there like Paul O'Connell, Devin Toner, Rory Best, Sean Cronin and Dan Tuohy - these guys spent an awesome amount of time on laptops and a savage amount of work.
"Credit has to go to all of them. John has put in great structures put the players are really driving that on."