Real Madrid have completed the signing of Ezequiel Garay from Racing Santander.
The highly-rated Argentine was linked with a number of other clubs including Barcelona but Real have won the chase.
The 21-year-old centre-back may remain on loan at Racing for another season but Real president Ramon Calderon has confirmed reports of a deal.
"We've signed Garay," Calderon told reporters during Real's celebrations of their 31st league title.
"I don't know if he will come to the club this season or next, but we have signed a contract.
"He is a young player and the signing is proof of our desire to create a young, committed team full of enthusiasm and ambition."
Garay, who is recovering from a knee injury, is reported to have cost Real in the region of 10million euros (£8million).
His arrival is expected to pave the way for the departure of either Fabio Cannavaro or Christoph Metzelder.