Daniel Levy has established a reputation as one of football's shrewdest negotiators for a very good reason, but a recent report suggests he could be on the brink of making a rare blunder.

Tottenham may only have completed one permanent deal this year but the decision to sign Lucas Moura is proving to be a masterstroke. The electric Brazilian continued to boost his soaring reputation by scoring the crucial equaliser at the Nou Camp on Tuesday evening to send his side into the knockout phase of the competition.

The signing of Moura is a prime example of Levy's ability to spot a bargain and make excellent decisions in the transfer market while simultaneously balancing both footballing and financial interests.

However, he could be on the brink of making a huge mistake in the market by allowing Jaden Brown to leave the club.

Indeed, according to a recent report from Football Insider, Brown is attracting interest from Rangers, Huddersfield and Newcastle United and, with his contract set to expire in June 2019, a cut-price January deal is now on the cards.

Now, there's no question that Brown has his work cut out with Danny Rose and Ben Davies ahead of him in the pecking order, but Levy should do everything he can to convince him to stay.

Mauricio Pochettino has proven he possesses the managerial qualities to nurture talented young players and catalyse their development, and Brown could be the next success story to emerge from the academy.

With three goals and three assists to his name from 20 appearances in all-competitions so far this season, Brown clearly has the marauding qualities you would expect from a top modern-day full-back.

Whether he is capable of making the transition to Premier League football remains to be seen, but until he has been given a genuine chance at senior level it seems foolish to allow him to leave.

Tottenham's own decision to sell Kyle Walker to Manchester City for £50 million serves to prove how extortionate quality full-backs can be, so it's imperative that Levy recognises this and ensures he doesn't let a future first-team player slip through the net in January.

Tottenham fans - thoughts? Let us know below!