Manchester United have signed goalkeeper Sergio Romero as a result of the uncertainty over David De Gea.
Argentina international Romero, 28, was a free agent after leaving Sampdoria and will replace Spaniard Victor Valdes, who has been told he can leave.
Romero, who signs a three-year deal, played in the 2014 World Cup final and won the 2008-09 Eredivisie title under Louis van Gaal at AZ Alkmaar.
De Gea is into his final year of his contract and is wanted by Real Madrid.
"We have to prepare our season with the threat that David De Gea is going to Real Madrid," said Van Gaal.
"Sergio Romero can fulfil that because we have to handle it very quickly if it happens."
If De Gea stays, Van Gaal said Romero could compete for a first-team place.
"You need always competition. When I see that a player is better than the player in the line-up he shall play the next match."
Romero, who knocked Van Gaal's Netherlands out of the World Cup by saving two penalties in a semi-final shootout, becomes United's fifth signing of the summer.
In the business world, everyone is paid in two coins - cash and experience. Take the experience first; the cash will come later - H Geneen