Pool D:Argentina outhalf Felipe Contepomi believes securing a bonus point against Namibia today is no foregone conclusion.

Ireland failed to dispatch Georgia with a five-point haul, convincing Contepomi the minnows are no pushovers.

"We have to win and be ambitious," said the mercurial Leinster back. "Every match is a new story for us and if we are able to achieve what we want, then we have to get the bonus point.

"Against Georgia we learned it's never easy to get it and we felt better when we saw Ireland couldn't achieve it. All that matters is us qualifying. I don't mind about the others because I just worry for Argentina's colours."

Contepomi surrendered the outhalf duties to Juan Martin Hernández for the opening two games. But Hernández has been ruled out with a back injury until the clash against Ireland a week tomorrow.

Contepomi, who will be winning his 55th cap, is ready to resume shouldering the extra responsibility at outhalf.

"I have played many times as a outhalf for Leinster and for the national team . . . at scrumhalf," he said

Namibia prop Marius Visser, back in the side after a knee injury, expects a hard time containing the feared Pumas front row.

"It will be very difficult; Argentina know how to scrum and it will be a big contest up front. But we will have the Marseille crowd behind us, going for Namibia because Argentina are France's big rivals."

ARGENTINA: 15 I Corleto, 14 H Senillosa, 13 G Tiesi, 12 M Contepomi, 11 H Agulla, 10 F Contepomi, 9 A Pichot (capt), 8 JM Leguizamon, 7 J Fernandez Lobbe, 6 L Ostiglia, 5 P Albacete, 4 I Fernandez Lobbe, 3 O Hasan, 2 A Vernet Basualdo, 1 R Roncero.

NAMIBIA: 15 H Bock, 14 D Mouton, 13 D Preez Grobler, 12 C Powell (capt), 11 M Africa, 10 T Losper, 9 E Jantjies, 8 T du Plessis, 7 J Burger, 6 M MacKenzie, 5 N Esterhuize, 4 W Kazombiaze, 3 M Visser, 2 J Meyer, 1 J Redelinghuys.

Referee: S Dickinson (Australia).