Ireland's 20-point victory over Scotland has propelled them above England and into second place in the World Rugby rankings.
England had been the world's No. 2 side since June 2016, however, their second successive Six Nations defeat has dropped them to third.
Joe Schmidt's Ireland benefited from a 2.52 ratings points swing as they climbed into second place courtesy of their 11th Test victory in a row.
"Ireland are now on 87.85 points -- over six behind the world's number one team New Zealand, and 0.35 in front of England, who they face at Twickenham on Saturday as they go in pursuit of only their third Grand Slam," a World Rugby statement read.
"Scotland's defeat at the Aviva Stadium saw them drop to sixth below South Africa in the rankings, while France are up two places to eighth as their 22-16 victory over ill-disciplined England saw them gain 1.89 points, which was enough for them to leapfrog Argentina and Fiji."
The All Blacks remain the No. 1 side in the world. Ireland have the chance to consolidate their place in second -- and win a Six Nations Grand Slam -- when they play England at Twickenham on Saturday.