Manchester United manager Sir Alex Ferguson has revealed his delight after securing the signing of Shinji Kagawa.

The Japanese midfielder joined United from Borussia Dortmund last Friday for an undisclosed fee that is thought to be around £15m to £20m, signed a four-year deal with the Red Devils.

Ferguson believes that the 23-year-old can make a big impact at Old Trafford next season as the club prepares to try to win the Premier League title back from Manchester City.

"Shinji is an exciting young midfielder with great skill, vision and a good eye for goal," said Ferguson.

"I am delighted he has chosen to come to United. I believe he will make an impact upon the team very quickly as he is suited to United's style of play.

"We are all looking forward to working with him."

Kagawa scored 17 times and provided 13 assists as Dortmund won the league and cup double last season.