Porto coach Sergio Conceicao says his players are in for a new experience facing Arsenal tonight.

Porto will host the first-leg of their Champions League round 16 tie

Conceicao said: “These are meetings of the highest level and, at this stage, even more so. Let's go into more detail in the preparation, because there is so much quality and situation to cancel that we want to explore. Preparation is no different. Maybe, since there is a lot of material and content, the video session is a little longer. Training on the field is the same.

“I think everyone knows this team. It has great quality and a coach who has been at the club for five years and who has acquired individual values of enormous quality. When combining this with their collective organisation, Arsenal are capable, competent and strong. We cannot forget that it is in the top 3 in market value. This indicates their power. Now, we are facing a team with a European pedigree.

“We look at a team with technical capacity and talent, which can be resolved at a given moment. It is one of those with the highest percentage of ball possession in the English League, it knows how to speed up the game like no one else through very wide and deep wings, which create imbalances one on one, it has midfielders with great ability to infiltrate [the opponent's defensive organisation] and is very present in the last third, being also strong in tactical schemes.

"This makes this duel slightly different from those we find in internal competitions."