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Jan Vertonghen will be key to a successful season for the club.
Having featured in all of Belgium's World Cup matches in Brazil, helping them to reach the quarter-finals, Jan Vertonghen will likely have received a massive boost in confidence.
Because if there's another department that needs tidying up for Spurs, it's their defence.
Far from the meanest of rearguards, last season they ended up with a paltry goal difference of just four, thanks in large part to a rather leaky back four which saw them conceded more goals than any other team inside the top eight.
In fact, the 51 goals they conceded was a noticeable deterioration on the 46 from their 2012/13 campaign. So, it's clear to see they've got to re-assess just how they're defending.
And Pochettino would be wise to take note of any improvements Vertonghen deems necessary.
Having proven himself defensively in each of the five matches he played in this summer's global extravaganza in South America, as well as grabbing an important goal, his commanding presence at the back could go a long way to seeing an improvement in the "goals against" column come next May for Spurs.
Belgium conceded just three goals in Brazil, one each against Algeria, the USA and Argentina—and the States' strike didn't hit the net until extra time—so it's clear the Belgian knows how to defend.
Provided he can re-create that form again, pass on his knowledge and continue to build a positive rapport with his compatriots at the back, we might very well see a revival in their defensive capabilities.
And with the Independent's Simon Rice reporting that the 27-year-old is intent on staying put with the white jersey amidst speculation linking him to Barcelona, his passion for the cause cannot be questioned.