Begiristain is taking in Brazil's World Cup qualifier against Uruguay and will run his eye over Sevilla fullback Daniel Alves and Werder Bremen midfielder Diego.
El Mundo Deportivo says Alves is Barca's No1 target should Gianluca Zambrotta return to Italy in the summer, this despite reports of an agreement over personal terms with Bayern Munich's Philipp Lahm this week.
Diego, meanwhile, is seen as the ideal midfield schemer Barca have missed this season. Their priority remains Arsenal ace Cesc Fabregas, though Barca insiders agree Diego is the more realistic option.