Wales will seek to end France's bid for a first Six Nations Grand Slam since 2010 when the sides meet at the Principality Stadium on Friday.
France were at their very best as they thrashed Scotland to maintain their 100% run in this year's tournament.
Thirteen tries so far is testament to their flair but their defence has also been transformed by Shaun Edwards.
Wales' hopes of retaining their title are effectively over following defeats by Ireland and England.
How they could have done with their former defence coach Edwards during their 23-19 defeat by England at Twickenham in round three.
A dreadful and ill-disciplined start that saw them fall 17-0 behind and they can ill-afford to begin the same way against Fabien Galthie's in-form France.
Recent matches between these two teams are normally tight — last season France secured a last-gasp 32-30 win in Paris to deny Wales a Grand Slam — and the hosts will need to be firing on all cylinders if they are to contain the red-hot Six Nations favourites.
If France win they will face England in Paris on Saturday, 19 March for the title and Grand Slam, while Wales will play Italy at home in their final match.
Wales have made four changes from the side that lost to England with two of them in the back row.
Josh Navidi is fast-tracked back into the side after five months out with a shoulder problem, while Seb Davies starts at blind-side flanker, in a change from his usual position as a lock.
Taine Basham is dropped and Ross Moriarty moves to the bench.
Gareth Thomas is chosen ahead of Wyn Jones at loose-head prop and veteran centre Jonathan Davies starts after Nick Tompkins sustained a concussion playing for Saracens.
France captain Antoine Dupont has been passed fit despite injuring his arm
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