9 out of 10 footballers are done at this age.
Except guys like Zlatan and CR7 who are physical beasts and motivated maniacs.
They both survived because they turned into some sort of targetmen in the box.
They don't dribble or sprint that much.
They don't rely on runs behind defense and pace.
They both rely on crosses/headers and smart movement in the box to get into a right place for a tap in.
Now:
1. Can Messi rely on crosses and headers like 195 cm tall Zlatan and 187 cm tall Cr7?
No
2. Can he rely on smart off the ball movement and tap ins?
Not really, he has never done that, since he was never on a receiving end of passes BUT the guy who was creating passes.
Zlatan and Cr7 are scoring tap ins for the last 10 years, Messi can barely score today.
3. Also, those two seem to be in a way better physical shape unlike Messi, so they had better chances to prolong their careers.
Messi basically don't know how to play anything else than a CAM role.
And yet he will be slower and slower each week and easier to tackle and dispossed which will lead to more and more counters and we will be killed by Messipendencia.
Not to mention his pressing and defending.
No offense to Messi, but I don't see how he could change his style and prolong his career.
That is a guy who doesn't allow you to bench him at 5:0 vs Levante.
He don't wanna change his CAM style, plus he'll be inefective as a striker due to his lost pace, being short and poor off the ball movement.
Messi as a striker is as crazy idea as him playing as Xavi.
He is a hybrid false 9-Cam and that's it.
And he don't have legs for it anymore.
You dont have to be big and strong to do well as a striker, Aguero is the prime example, and Messi as false 9.
Messi actually had plenty of physical attributes, despite not being thought of as a "physical player", he had insane acceleration and balance, his top speed was good too.
Furhtermore, his movement was underrated, sure he still started many attacks, but during the days of false 9 he made runs into the box too, and he had Xavi, Iniesta and Alves to pick him out, low crosses into the box was quite effective those days.
Its true he cant play that role anymore though, asking Messi to play striker today is indeed just a fantasy, he lost those physical attributes(and his finishing skills were way better back then) to play that role, dont see him doing anything else than CAM-role now.
What set Messi apart was the combination of top technical abilities and top physical abilities, he still has the former, but physically he looks done.