Alderweirelds contract was extended for another year after the club decided to activate the clause in his contract.
Spurs became the first club to not sign a single player in the January window. However Spurs tied a no of their stars to long term contracts which included Dele Alli, Harry Kane and Heung Min Son.
However, the likes of Moussa Dembele and Eriksen have not yet signed a new contract with the club. Dembele has 6 months left on his contract and has been linked with a move to either France or China.
Players like Fernando Llorente and Michel Vorm have also been linked with a move away from the club.
Alderweirelds contract has been extended till 2020 but that may make the player available for €25m in the 2020 summer.
Pochettino was asked in his press conference whether Alderweireld could stay at Spurs beyond his current contract.
Poch said (Football London): “Nothing changed in those few weeks. Now we are focused on trying to fight for every single competition we face. I think with Toby, it’s like other similar players, like Dembele or Jan Vertonghen, now is so clear the situation and we will see what happens in the future. Now I think the situation is the club we are so focused to do all that we want this season.”