France head coach Fabien Galthie said on Thursday Romain Ntamack and Gregory Alldritt will start in this weekend's potential Six Nations title decider against Ireland, which he called an "immense challenge" for his team.

France flyhalf Romain Ntamack will return from suspension against Ireland in the Six Nations on Saturday with winger Damian Penaud also back in the starting XV after missing games against Italy, coach Fabien Galthie said.

Romain Ntamack returns at flyhalf and Damian Penaud is restored on the right wing for the Six Nations match against Ireland on Saturday.

France fly-half Romain Ntamack will return from suspension against Ireland in the Six Nations on Saturday with winger Damian Penaud also back in the starting XV after missing the match against Italy.

Heading into their match against France, Ireland are within touching distance of claiming a historic Six Nations Championship three-peat,

Ireland are handed their third defeat of the Under-20s Six Nations as a dominant first-half display helps France earn a 22-12 win in Cork.

Ireland host France on Saturday in a Six Nations match that Irish interim head coach Simon Easterby says has "become a crux game" in where the championship might head. France head coach Fabien Galthie says Ntamack has kept up to speed by training with the squad even when he was suspended.

France and Ireland have named their teams for Saturday's epic Six Nations clash in Dublin, with France coach Fabien Galthie once again opting for a 7-1 split on the bench.