The father of Cerro Porteno superkid Sergio Diaz says his son would prefer AS Roma over Chelsea.

Chelsea have been in talks with the Diaz family this month about a summer move to Europe.

"My son wants to play for Roma," Ismael Diaz told 730am radio.

"In fact, their offer is more concrete than Chelsea's."

In detail:

Sergio Diaz: Why Liverpool, Man Utd and Barcelona are chasing the Cerro Porteno sensation