Barcelona star Dani Alves believes David Luiz would prove to be a great signing for the Spanish giants.
Luiz, who has been linked with a move to the Catalans, is reportedly interested in a move to the Nou Camp.
And Luiz's international teammate Alves would welcome the 26-year-old to Barcelona.
On the potential signing of the Chelsea ace, Alves told El Mundo Deportivo: "I would be happy if David Luiz would come to Barcelona. I always want the best for my friends and advise them to join Barca if they get the chance.
"He's not just a friend, but he has a lot of quality, too."
However, Alves has admitted that it would be very difficult to tempt the star to join the Catalans.
"The problem is not whether he would like to come here, but that you have to take him away from Mourinho and that will not be easy.
"Letting David Luiz join Barca will not be an option for him and even less so as it would make us stronger. It will be incredibly difficult, nearly impossible."
And with Blues boss Jose Mourinho having already stated that Luiz is not for sale, any deal to bring the Brazil international to the Nou Camp could prove to be a tricky one.
The Brazilian has four years left on his contract at the Bridge and may have to hand in a transfer request if he decides he wants to join the Catalans.
Luiz is currently on international duty with Brazil as his side will take on Switzerland this week.
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