Tunisia midfielder Mehdi Nafti has promised they will put on a "different face" to face Spain on Monday.

The African side drew 2-2 with Saudi Arabia on Wednesday leaving their Group H campaign in the balance as they prepare to take on the group favourites in Stuttgart.

But Nafti insists he is not daunted by the team who swept aside Ukraine 4-0 in their own opening game.

"I'm not unsettled though it will be difficult," he told reporters. "I know we need to show a different face.

"We had problems physically and tactically and concentration was lacking (against Saudi Arabia)."