Cardiff - Wales blew the Six Nations race wide open by battling to a thrilling 23-16 victory over Ireland at the Millennium Stadium on Saturday.
Five Leigh Halfpenny penalties, a Dan Biggar drop-goal and a try from replacement Scott Williams ended Ireland's hopes of a first Grand Slam since 2009.
Joe Schmidt's side had Wales worried with a penalty try 10 minutes from time converted by Jonathan Sexton, who also hit three first-half penalties, but Halfpenny brought Ireland's 10-match winning streak to an end with a decisive late penalty.