The former agent of new Barcelona signing Robert Lewandowski has no doubts he'll be a big success.

Lewandowski completed his move from Bayern Munich on Sunday.

Cezary Kucharski also had a warning for Real Madrid striker Karim Benzema as he told El Larguero: “Everyone knows that Barcelona's economic situation is not perfect.

"Lewandowski has always wanted to go to Spain and that is why he fought with Bayern in order to go to Barça. Lewandowski wants to show in Spain that he is better than (Karim) Benzema.

"I don't think he will leave before the end of his contract for the United States. Afterwards maybe yes, but I think he is going to fulfill these three years in Barcelona."