French-born coach Roger Lemerre has said that Tunisia have both the physical strength and tactical savvy to derail high-flying Spain in their World Cup Group H clash on Monday in Stuttgart.

While the Spanish have emerged as major title contenders following their 4-0 defeat of Ukraine, a question mark hangs over Tunisia's second round survival chances after their late salvaging of a 2-2 draw with Saudi Arabia.

It took a late headed equalizer from Bolton defender Rahdi Jaidi to keep Tunisia's campaign alive, and the post-match feeling from the Saudis was they had been robbed of two points.

Despite having to overcome both a psychological and physical handicap, Lemerre feels Tunisia can use a combination of power and style to defeat Luis Aragones' favorites.

"It will be a battle of two different styles of play," said the Tunisian trainer, who after the ignominy of steering France out of the World Cup first round in 2002 without a win or a goal rekindled his career two years later by leading Tunisia to the African crown.

"Our players are just as good and maybe have the edge (on Spain) when it comes to physical power," Lemerre added. "Our number one priority is motivation. We have to be prepared to push for this together. The expectations are big, so we need nothing less than 100 percent from everybody."

The Tunisians haven't won a World Cup game since they beat Mexico 3-1 in their tournament debut in 1978.

To complicate matters for the Africans, top Brazilian-born striker Francileudo dos Santos is still sidelined with a persistent shin injury and only has a 50-50 chance of playing in their final group match, against Ukraine.

In their bid to defy Spain, salvation might instead come from their savior against the Saudis. Bolton defender Jaidi said they have learned from their disastrous opening match.

"We all know that we didn't play well, but if we manage to concentrate better against Spain we will play better," he said. "Maybe we can even achieve an upset."

Spain should be brimming with confidence after its powerful performance against Ukraine, although the nightmare scenario of yet another exit at the quarter-final stage is omnipresent and Aragones seems to have insisted on his players favoring a step by step approach.