Porto are set to snap up Real Madrid midfielder Lucas Silva.
The January arrival from Cruzeiro is set to be loaned out by Real for next season.
AS says Porto are already in contact about taking on Lucas as a replacement for Casemiro.
Casemiro was re-signed by Real last week after a superb 12 months on-loan in Portugal with Porto.
Lucas is expected to do the preseason with Rafa Benitez's first team before being sent to Porto for the new campaign.