At the end of this season, Tottenham Hotspur boss Jose Mourinho is going to be handed an interesting conundrum at left-back.

Summer signing Sergio Reguilon appears to be the first choice, for now, but that could soon change if Real Madrid trigger that buy-back clause - which is quite a possibility with Marcelo turning 33 before the summer.

Whilst his current back-up, Ben Davies, is under contract in north London until 2024.

You've also got promising young talent Ryan Sessegnon, who is enjoying a run of games at Bundesliga outfit Hoffenheim this season.

However, in the long-run, it should be Dennis Cirkin who gets the nod. In fact, he should be integrated over the struggling Welshman sooner rather than later to allow for a smooth transition should Reguilon return to Spain.

Mourinho is a massive, massive fan of the 18-year-old as he's often let him train with the first team squad - upon signing a new contract last year, the Special One said: "OK, he’s 17, but he’s a kid with a lot of quality, and I look forward to bringing him to train with us, and to help his development."

He has even hinted that Cirkin will be involved with the seniors full-time from next season.

The teenager has been capped at U16 and U17 level for England but is yet to feature for Spurs' first-team despite being named on the bench in two of their three Europa League Group J matches thus far.

Cirkin is described as having "great engine on him" as well as "excellent technical ability on the ball" whilst he is a starlet that many fans in north London have called for as recently as pre-season.

One supporter called him the "real deal" and another compared him to Jan Vertonghen.

It's still early days, of course, but all the signs are there for Mourinho to fast-track his progress in the near future. He's certainly a young talent to keep an eye on.

Doing so could save Daniel Levy a lot of money going forward.

AND in other news, Mourinho has completely transformed "huge" Pochettino flop...