Manchester United boss Sir Alex Ferguson has no doubts about Javier Hernandez's quality.

Ferguson believes is an impressive roster of United forwards.

"We are quite positive about our strikers because they are all different," said Ferguson.

"In the box, Javier Hernandez is unbelievable. He has had his issues with concussion and two ankle injuries but his game is starting to come now.

"Wayne Rooney has 19 goals and can easily end up around the 30 mark.

"Dimitar Berbatov is the one who is being ignored by everyone but he will always give you something different."