Spurs do have an option to extend Alderweireld's current deal by a further year, although that would see a £25m release clause inserted into the contract.
The centre-back failed to agree terms over a contract extension with the club and, as a effect, was hotly tipped to join Manchester United this summer.
And while on worldwide duty, Alderweireld claimed he never wanted to leave Tottenham.
And since then the 29-year-old has committed himself to Tottenham. But, Manchester United were the most forthcoming of all the suitors, and made numerous attempts to secure the services of Alderweireld.
The Manchester Evening News reported Alderweireld was valued at £55 million by Tottenham. But, if Alderweireld is to be believed, rumours of him wanting a move away from Tottenham were untrue, and that he is focused on retaining his place as a regular in the first-team setup.
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"Everyone was saying everywhere that I absolutely wanted to leave Tottenham", Alderweireld stated this at a news conference ahead of Belgium's UEFA Nations League clash against Iceland on Tuesday.
'Regarding my future, everything that was said in the press was not right all the time'.
Alderweireld was an unused substitute for Tottenham's opening-day victory over Newcastle, but has since started the following three matches after being reintegrated into the first team by manager Mauricio Pochettino.