Make no mistake, Gareth Bale returning to Tottenham is massive, the prodigal son is coming home and it will, of course, dominate this news cycle.
But the signing of 23-year-old Reguilon is a bigger deal, in my opinion.
The defender will fill a void that has been so lacking in years, Ben Davies is not good enough and Danny Rose certainly was not and the defensive flanks have been an issue that has needed addressing for some time.
If Reguilon adapts to the English game and I believe he will, then we could have a top-class left-back for a decade, that is huge.
Reguilon will be with us for a lot longer than Bale will be, providing Real Madrid do not exercise the buy-back clause and the chances of that happening are slim.
Bale is 31 now and even if he replicates his best days, how long will he maintain that? How many years will we get from him?
It should also be noted that Tottenham does have a decent array of attacking options, that cannot be said of the defence.
Bale returning pulls on the heartstrings, it is beautiful nostalgia and a great story but in the long term, it is just a moment in time, whereas Reguilon is a long term solution to a long term problem.
For me, Bale is definitely big news but Reguilon is the bigger deal.