Real Madrid manager Rafael Benitez has responded to criticism from Sam Allardyce by saying that the Sunderland manager's opinion "does not have a lot of value".

Allardyce has said in his autobiography that Benitez's 2005 Champions League triumph with Liverpool was "nowt to do with him".

He wrote: "Of course he can say he won the Champions League with Liverpool, which is something I never did. But it was nowt to do with him.

"I don't blame Benitez for claiming credit but as managers we know the truth. It's like when you make a substitution in desperation and it comes off.

"You get all the credit for your tactical brilliance when it's often just luck."

However, Benitez has brushed off the remarks and questioned Allardyce's lack of trophies during his managerial career.

"Do you know who Sam Allardyce is?" he is quoted as saying by Sky Sports News.

"Do you know how many trophies he has won? Well that's my answer.

"It is what happens when someone has a book to sell. His opinion does not have a lot of value."

Allardyce has recently taken charge of Sunderland.