Martial 9 was the most popular Man United shirt last season.

So imagine ibra 9 lol

they can easily reassign the #s if this is an issue
besides which, the numbers are provisional for the preseason.

yep and ibra 9 will go through the roof

perhaps they think that a no 9 shirt with him will sell more than with a random number
i personally would certainly prefer the former, has more style

Am I the only one that genuinly doesn't care about the numbers?

Therefor. Everybody who wants the correct Martial shirt has to buy it again.

Yes
For me it's much about being comfortable...
If I play in shirts I don't like or wear a number I don't like I play a lot worse (I think)

well, i care a bit at least
who would want to run around with a random benchwarmer number

Thats just something else to distract you from playing right.

I have preference, like my favourite number has always been 10 but I would never cause a stink about it.
Then again I am a rational, educated human and not a professional athlete with an ego bigger than the stadium.