#1 Compete with Lionel Messi and assess his Ballon d'Or chances
Kylian Mbappe finished ahead of Lionel Messi in the Ballon d'Or 2019. How? We don't know. He had lesser goals, lesser assists, a better World Cup no doubt, and he finished ahead of Messi. On the back of his mind, he might be thinking, "Well, it was easy finishing ahead of Leo".
If Mbappe has any such thoughts in the wildest of dreams, he better forget about it. Lionel Messi despite being 10 years older than him is still ahead in terms of gameplay and stats. It was a surprise for many as to why he, and for that matter, Griezmann also, finished ahead of Leo in Ballon d'Or.
Mbappe might be wanting the Ballon d'Or title in the near future, possibly, this year itself. However, there doesn't even seem to be a race at this point with Messi walking to the finish line.
If Mbappe moves to LaLiga, it becomes pretty clear. The same oppositions, the same defenses, let the drama unfold. That will tell Mbappe, just how much he needs to improve in order to gun for the prestigious title. It will also help him assess his playing standards with that of Lionel and also to Ousmane Dembele.
We had the privilege of watching Ronaldo and Messi in the same league. So, time for Messi, Mbappe, and Dembele in the same league?