It's hard to believe that Dele Alli is still only 21-years-old.

The attacking midfielder has been a hit ever since his £5 million move from MK Dons back in 2015 and has two PFA Young Player of the Year awards to show for his progress.

After bagging 22 goals from midfield last season, it's only natural that all the heavy hitters in European football would start to take notice.

Alli only signed a new six-year deal worth £50,000-a-week last year, but it's become clear his stature has outgrown that wage already.

With plenty of interest in the England international, Spurs are hoping to agree a new deal with Alli and add an extra year to his existing agreement.

However, according to The Telegraph, it looks as though Tottenham's wage structure might get in the way of their hopes.

Harry Kane is the highest-paid player for Mauricio Pochettino's men with a salary of £100,000-a-week and he's comfortably in front of the chasing pack which is thought to be led by the likes of Christian Eriksen.

The Telegraph's report suggests Spurs are going to offer Alli £80,000-a-week when negotiations kick off, leaving him some £20,000 short of Kane.

Now, it's worth noting that a £30,000 pay rise is nothing to be scoffed at, but in today's market, nearly all of Tottenham's players are underpaid.

Alli could earn double, maybe even triple that sum playing at Real Madrid or Barcelona, two sides who have apparently taken a keen interest in him. Not to mention, three of four of their Premier League rivals.

Although Spurs look like a team on the up with an exciting squad and a new stadium coming next season, they are banking on Alli's loyalty when signing a new deal.

That's far from guaranteed. Plus, Alli has decided to decided to ditch long-term representative Rob Segal and is currently being courted by every major agent in the world.

It's hard to imagine Mino Raiola or Jorge Mendes advising Alli to take the £80k-a-week, isn't it?

Spurs are hoping that they can agree this deal before next year's World Cup in Russia and before Alli secures a new agent.