"Last year we had a bad run of injuries on the final part of the season that left us short to handle all the competitions we were in. In the circumstances we did exceptionally well to win the league title, but I was left with the feeling that with just a few more players we might have reached the European Cup final and perhaps won the FA Cup.
"My job is to keep Manchester United at the forefront of the game and adding these four new players will certainly strengthen us, especially in the Champions League.
"We have faltered in three European semi-finals now and a club of our stature should be doing better. Our new players will hopefully enable us to get over this final hurdle. It all adds up to one hell of a squad."