Paris Saint-Germain coach Laurent Blanc and his players say they are not taking the visit of Dutch side Ajax lightly as they face off in Champions League Group F action, despite the fact they have already qualified for the second round.

The two-time defending French champions top the pool with 10 points while Barcelona are one point back, and also qualified ahead of the final day clash between the two teams at the Camp Nou, which will determine the group winners.

Ajax still have the matter of sealing third place and a spot in the Europa League although Cypriot club APOEL Nicosia are just one point back and at home to Barcelona the same night.

"We can not start thinking about the match against Barca," warned PSG keeper Salvatore Sirigu.

"Before playing this so called final, we have to first of all play against Ajax and win," added the Italian.

"Ajax are going to give everything, they are playing for third place and that's important for them. Looking at the away match and the problems they caused us, our thoughts are not about Barca but much more on the match tomorrow."

Ajax coach Frank De Boer has promised his side are going to throw everything into the match in order to push closer towards a place in Europe's second-tier competition.

"We are not going to give up without a fight, we play very good football and we can't play with fear in our bellies," said the former Dutch international.

"I don't want us to play with fear but put up a real fight to get the best result possible."

Blanc has guided PSG to an unbeaten start to the season in all competitions and the 3-2 victory over Barcelona on September 30 set up the one point difference between the clubs.

The capital club would only need a draw at Barcelona, if they win on Tuesday, to get the all important top spot but Blanc says his team still need to be more ruthless after dropping two points in Holland during the 1-1 draw in the reverse fixture against Ajax.

"We didn't have the same confidence when we played that match and we still have progress to make, but we are still very present in Ligue 1 and also the Champions League.

"I think, and I hope that in the important moments we will be more like killers, which we weren't in the first match," added the former Bordeaux and France coach.