Sexton, who played a vital role in Ireland's back-to-back wins over France in the Six Nations will be centre of attention after French players confirmed their plan of attack on Wednesday.
"I know that he is slow in getting rid of the ball, I am going to try and put the maximum pressure on him," said Ben Arous.
"I am going to hunt him down as often as possible.
"We are going to go after him 200 percent because he is their most valuable player."
France full-back Brice Dulin, said that Sexton has to be contained to avoid Ireland from getting front foot ball.
"It is imperative to go after him, to tire him so that he finds it tough to make the calls," said Dulin.
"He has a certain manner of playing for Ireland. He loves to be in the vanguard in order to build the attacks, and behind, he is capable of taking the pressure off at any moment.
"It is of the greatest importance to be able to read him in his attitude, his positioning, to anticipate what he is going to put into motion."
Alexandre Dumoulin, however did issue a note of caution.
"We know that like all other countries, if a fly-half is compelled to tackle a lot, he will be tired and therefore a little less lucid in the decisions he takes during the match," said Dumoulin.
"To target him might be a solution but not the only one to beat this Ireland side."
