Joe Schmidt's Ireland earned a bonus point in their win over France to ensure the Six Nations finale will feature a three-way title tussle.
Ireland kept their Six Nations title defence alive with a 26-14 bonus-point win over France in Dublin.
First-half tries from Rory Best, Johnny Sexton and Jack Conan paved the way for victory, with Keith Earls grabbing the crucial fourth after the interval.
Joe Schmidt's side now need to beat table-topping Wales in their final match in Cardiff and hope England fail to get the better of Scotland if the trophy is to remain in their hands.
The hosts, already without Robbie Henshaw and Dan Leavy, also lost Rob Kearney to injury as Jordan Lamour came in at full-back, but the early signs suggested it did little to undermine their fluency.
Best put the finishing touch on a move started by his own line-out throw in the third minute and Sexton added the extras.
France thought they had provided a swift response, but Thomas Ramos knocked on before pulling a cross-field kick out of the air to score.
Concerted Ireland pressure did not get its reward until just before the half-hour mark, Sexton deftly exchanging passes with Garry Ringrose before darting through a gap to touch down for his first Test try since 2015.
Having lost to England in their previous home game, Ireland all but made sure of avoiding the same fate this time around when Conan bulldozed his way over the line just before the break.
It took a while for Schmidt's charges to get going in the second half, but Earls sprinted away for the bonus-point score to set up a tantalising final round of the 2019 Six Nations.
France only stirred to life in the dying embers of the contest, with Yoann Huget's late try – which came while Dorian Aldegheri was in the sin bin after repeated infringmenets – followed up by another from Camille Chat beyond the 80th minute.
Earls' try pivotal?
Ireland knew above all else that they simply had to win, but the addition of a try-scoring bonus point was the icing on the cake.
After controlling the opening 40 minutes, there was a disconcerting drop-off in Ireland's display in the second half until Earls' 56th-minute try, which sparked jubilant celebrations and could yet prove invaluable.
