Tottenham have confirmed the signing of Antonín Kinský from Slavia Prague for a fee of £12.5m.
The goalkeeper, who has signed a five-and-a-half-year contract in north London, replaces Guglielmo Vicario, who is currently out injured.
The 21-year-old has kept 12 clean sheets in the Czech league this season and has already made more than 70 appearances for the first team.
He is likely to replace Fraser Forster, whose contract expires at the end of the current season.
Kinski will wear the No.31 shirt in north London.