Wales scrum-half Rhys Webb said he is only concerned about beating France on Saturday, not world rankings or British and Irish Lions selection.
Victory for Wales in Paris - and an England victory over Ireland - would lift Wales into fourth spot ahead of May's 2019 World Cup pool draw.
Such a scenario means they would be likely to avoid a so-called pool of death, which they encountered in 2015 after being grouped alongside England and Australia.
Wales bounced back from back-to-back defeats to beat Ireland 22-9 in Cardiff last Friday and if they beat France, they could finish second in the Six Nations.
He missed the last World Cup after suffering a serious injury during Wales' final tournament warm-up game against Italy, and Webb admits that he now has a more philosophical outlook.