Mauricio Pochettino's has got a lot of transfers right since his move to North London. Between Dele Alli and Toby Alderweeireld, there's enough success alone for most managers to be deemed a transfer expert.

However, he's also got more than a few deals wrong, like that which brought Vincent Janssen to the club.

There are some, too, in which the jury is still out. Serge Aurier is a prime example of this. The Ivorian moved to London from PSG, and he was expected to go from strength to strength on the right-hand side of the Tottenham defence.

However, it just hasn't worked out for him yet, and if things don't turn around, he could find his days at Tottenham numbered.

The emergence of Kieran Trippier has certainly had a big part to play in Aurier's inability to hold down a first team spot. His rise didn't begin at the World Cup with England, though his stock did dramatically rise over the summer. The months preceding and following the departure of Kyle Walker to Man City are what initially gave Trippier his chance, and he took it with both hands. He didn't look capable of being able to make a continual impact in the English top flight, but a switch flipped and he became one of England's best defenders - and that was bad news for Aurier. The Ivorian quickly went from a likely starter to more of a rotational option.

Add to that the often inconsistent form of Aurier, and he quickly has a problem. Though he's decent going forward, the Ivorian has struggled to impress defensively, and in the Premier League, that's simply not good enough. Lacking a solid defensive engine, he's rarely been able to impress at the back. Trippier, meanwhile, is able to make an impact at both ends of the field, and his threat going forward has increased exponentially as of late.

So, we get to the real crux of the debate. Aurier isn't likely to be happy with a backup role at Tottenham, and his poor performances mean that he's not exactly a continually reliable option at Spurs. He needs to buck up his ideas and improve, then, or he could find himself replaced.

Tottenham fans - thoughts?

Let us know below!