Vadillo has in recent months been dubbed "the new Cristiano Ronaldo," so could he be following in the footsteps of his supposed predecessor in joining up with Manchester United this January?
The man from Spain plays on the left wing for Spanish club Real Betis.
There will be very few United fans out there who would argue that United are particularly strong on the left side of their midfield right now. Both Luis Nani and Ashley Young are terrific players, but they are heavily prone to inconsistent performances.
What United need in the role is someone who puts in a world-class performance 100 percent of the time.
Of course, many fans would argue that the man to come and fix that particular problem is, in fact, Ronaldo himself.
Since the revelation that he was "sad" at Real Madrid, the footballing columns and forums have gone into overdrive with rumours linking the Portuguese man to a plethora of clubs—primarily hinting at a move back to Old Trafford.
So are the comparisons between Vadillo and Ronaldo accurate? Well, if I'm honest, I don't expect the Spaniard to ever reach the level of dominance in the current game that Cristiano has achieved.
I can't imagine there ever being players as good as Lionel Messi and Ronaldo again—at least not in the next decade. Sure, there will be at some point, but certainly not so soon after these footballing Goliaths have graced our stage.
Can Vadillo become a world-class player? Yes, he certainly has more than enough potential for that, and a club like United would be the perfect place for him to go and hone his skills.
But the real question is, will United want to focus on this 18-year-old when the ever-increasing possibility of signing back Ronaldo is on the table?
I think we all know the answer to that one.
Who do you think United will be targeting this winter? Could Cristiano really be on his way back to United?