Porto have signed Brazilian midfielder Casemiro on a season-long loan deal from Real Madrid. The 22-year-old, who moved to Madrid from Sao Paulo in January 2013, has made 27 appearances in all competitions for Real but could join Porto permanently next summer.
A statement published on fcporto.pt read: "Porto have secured Brazilian midfielder Casemiro from Real Madrid for one season. The Dragons have an option to purchase him at the end of that period."
The 27-time Portuguese champions finished in a disappointing third place in 2013-14 and new head coach Julen Lopetegui - the former Real Madrid goalkeeper - has been working hard to rebuild the first-team squad ahead of the new Portuguese Primeira Liga campaign.
Attacking midfielders Adrian and Oliver Torres have arrived from Atletico Madrid, right-back Daniel Opare has signed after leaving Standard Liege, and approximately €19m has been spent on bringing Yacine Brahimi, Bruno Martins Indi and Cristian Tello to the Estadio do Dragao.