Barcelona ace Lionel Messi insists their clash with Atletico Madrid will be more than a showdown with fellow Argie Sergio Aguero.

"There are many great players on both teams and we must not think only about a Kun-Messi duel," said Messi. "Atletico are already proving to be a great team, even in the Champions League, so I predict a very tough match.

"Kun and I get along well and we like to play together. We're friends and we want the best for eachother."