Andres Iniesta has described Barcelona's UEFA Champions League second leg against Arsenal as the Spanish club's first cup final of the season.
Pep Guardiola's side welcome their English counterparts to Camp Nou in the last 16 of the European Cup on Tuesday night for a much anticipated meeting.
Arsenal, who have surprisingly included previously injured striker Robin van Persie in their squad, have travelled to Spain with a 2-1 aggregate advantage after the first leg.
And Spain international Iniesta is aware of the pressure facing Primera Liga leaders Barcelona ahead of the return fixture in the Catalan.
"For us there are no doubts," he said.
"This is the first final of this season and we cannot fail at home and with the support of our fans."
Arsenal captain Cesc Fabregas is expected to return from a hamstring injury against his boyhood club, but Iniesta thinks that England rising star Jack Wilshere, 19, poses an equal threat.
"We have analysed Arsenal and Cesc is not exclusively the key man," said Iniesta.
"Wilshere is also very important for Arsenal. He is still young, but could go far and be the chief in the team."
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