What is better for Rafa's AO 2009 shirt, boy's or men's

Hi, I'm buying Rafa's 2009 Ao Night shirt
I have options to buy Boy's XL, Men's S and M
I normally wear men's xs or s
The prices are the same!
So I just wonder
Which one look more like the one Rafa wore and which one is better
Please answer quickly
I have to answer the seller in 2 days
Personally it look like Rafa's men's shirt has more light blue but When you compare it to his shirt before he sweats, it's exactly the same
I'm really looking for the shirt that is similair to Rafa's
 
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