Alderweireld has been linked with a potential move away from Spurs and a switch to another Dutch club in the shape of PSV Eindhoven has been floated.
Spurs are expected to work to reshape their squad when they appoint a new manager and it remains to be seen how central Alderweireld is to their plans.
The 32-year-old is now on Ajax’s radar as, according to Belgian daily Voetbal Krant, they are considering a potential swoop for his services.
A move to Ajax would represent a return to the Dutch club for the Belgian.
The Belgium international climbed through their youth ranks before making his mark in La Liga and the Premier League.
The two-time Champions League finalist would bring experience to the Ajax backline, but it remains to be seen if he is interested in a return to the Netherlands.
Alderweireld has another two years left on his contract at Tottenham and has made 30 appearances for the club across all competitions so far.