Manuel Almunia has warned Manchester United that Arsenal are ready to prove their desire for UEFA Champions League glory.
The Gunners suffered a 1-0 defeat at Old Trafford in the first leg of their semi-final tie with the European champions.
And the loss could have been far more detrimental for Arsenal had goalkeeper Almunia not put in a man-of-the-match display.
The Spaniard, though, remains confident his team-mates will demonstrate their quality in the return meeting at Emirates Stadium next week.
He said: "Maybe Manchester United are physically stronger than us - but in terms of desire, nobody can beat us.
"The Champions League is now the only trophy left open to us this season and next Tuesday we will show we are good enough to win this competition.
"We may be a young team but we have plenty of European experience.
"We've been showing in the league that we are mature enough to win every game and we know exactly what we have to do at the Emirates against United."