Tunisia coach Roger Lemerre still believes his side can reach the last 16 of the World Cup finals despite Monday's heartbreaking 3-1 defeat to Spain.

The north African side led for much of the game against the fancied Spaniards before conceding three goals in the last 18 minutes.

"I'm very disappointed, especially for the team and for Tunisia because we had good tactics," said the Frenchman.

"We were concentrating on their attacking game, but it all crumbled because of a single mistake.

"All is not lost but we didn't win anything here either. The Ukraine game will be decisive, the route will be difficult, but we still have hope."