It was recently reported by the Telegraph that Spurs, amid interest from the Portuguese, had placed a £50m price tag on the 23-year-old.
And according to M.E.N‘s James Robson, the 54-year-old will match the price set by Daniel Levy and Co as he seeks to bolster his midfield ahead of the 2017/18 campaign.
I would not be against capturing Dier if Mourinho would then go on to secure somebody truly capable of engendering the balance and poise in midfield mastered by Carrick over the years. The Englishman has proven to be a useful asset at White Hart Lane, providing a powerful blend of aggression and discipline that enables the likes of Christian Eriksen and Dele Alli to surge up the pitch.
But can he control a game? Can Dier, at the age of just 23 and a full-back during his time at Sporting Lisbon, offer the positional intelligence and execution needed to dominate the very best next season? Can he, in fact, even offer anything different to Ander Herrera?
Mourino would, I suspect, regret pin-pointing him as a Carrick replacement in the long-term.