Wenger: You will be sorry United

Arsene Wenger has told Manchester United that they will pay for only bagging a 1-0 Champions League semi-final first leg win.

Irish defender John O'Shea gave United the priceless but ultimately slender lead to take into the second leg of their Champions League semi-final with Arsenal next Tuesday.

O'Shea's 17th-minute effort was the least Sir Alex Ferguson's side deserved for a near faultless display, in which Manuel Almunia several stunning saves and Cristiano Ronaldo rattled the Gunners' crossbar.In addition, Ryan Giggs had a goal controversially disallowed for offside on his 800th appearance, meaning Arsenal headed home glad to still have a chance of reaching Rome on May 27, a train of thought Wenger believes his side will ram home in the second leg.

"They can have regrets because they did not score a second goal," explained the Frenchman.

"The return leg will be a good opportunity to show our character and mental strength.

"It is down to us to make sure they regret they didn't.

"I am confident that you will see our strength of character - and next Tuesday I can talk about it in the Press conference after the game.

"It will be our biggest win over United if we do it because there is a final at stake.

"And when we play at home and know that there is a final at stake we will be up for it.

"We will be up for it next Tuesday and I am confident we can do it. I believe we will be on top."