Arsenal winger Theo Walcott admits the dressing room is still upset over the way they lost last season's Champions League semifinal to Manchester United.

United embarrassed the North London club with a 3-1 victory at the Emirates and ran out comfortable winners over the two legs.

With the draw for the last eight in Nyon, Switzerland, on Friday, Walcott says they would love the chance to set the record straight against Sir Alex Ferguson's side and show they have the quality to win the European Cup.

Walcott said: "We've had disappointments in this competition over the last couple of years - Manchester United in the semis last year. We need to build on results. Hopefully, if it comes to it we'll learn from our mistakes and try to go one step further.

"We were very ­disappointed in the games we played [against United]. We want to do something for the fans. As long as we win ­something this year and bring something back for them because they've been very patient when we haven't won anything.

"This year we've got a great chance of doing well.

"If we get an English team, it will be like a Premier League battle. We want to go that one step further."