La Roja are blessed with a host of talent between the sticks, but Grande has revealed the names of the stoppers that currently hold the three positions in the squad.
"Our three are Iker Casillas, David de Gea and Kiko Casilla, but we could call Roberto or Miguel Angel Moya," he told AS.
De Gea has been in fine form for Manchester United this season, but Casillas has been criticised for his performances with Real Madrid. Espanyol stopper Casilla, meanwhile, has long been regarded as one of the best stoppers in La Liga.
Atletico Madrid goalkeeper Miguel Moya is believed to be first reserve should injury hit one of their current three.