Tottenham have signed goalkeeper Antonin Kinsky from Slavia Prague.
Spurs will pay £12.5m for Kinsky, who is a Czech Republic U21 international and has agreed a deal that runs until 2031.
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Spurs have serious issues in goal with first-choice Guglielmo Vicario out injured and Fraser Forster among those who missed Saturday's 2-1 defeat to Newcastle due to sickness, leading to Brandon Austin, 25, making his senior club debut in the defeat.
Kinsky has kept 12 clean sheets in the Czech First League across 19 league appearances for table-topping Slavia Prague this season.
What are Spurs' plans for the January transfer window?
Tottenham are looking to strengthen their squad this January in a variety of positions given injuries to key players and the decline of form as a result.
Although he has done well under the circumstances, playing Archie Gray at centre-back has not been ideal, so this is one area the club are looking to add depth, as well as in the forward positions and central midfield.
They wanted Conor Gallagher, or someone like him, in the summer, while Timo Werner was brought in on a loan deal in the winger positions rather than permanently, and the injuries to Richarlison and Wilson Odobert have left them short of options.
Spurs want those players back and competing for a place, and in particular Richarlison, who has no desire to go anywhere in January himself, Sky Sports News understands.