Real Madrid will have top scouts posted to Portugal this weekend.
O Jogo says Real will have scouts in the stands to see the El Clasico between Benfica and Porto.
Porto central defender Felipe Monteiro is a major target, who is being viewed as a replacement for Pepe.
Teammate André Silva is also under consideration, on the recommendation of Cristiano Ronaldo.
It's been revealed Felipe and Real have already agreed personal terms, though a fee is yet to be settled with Porto.