Michael Jordan wore number 23, with the exception of a short period of time, when he played professional basketball with the Chicago Bulls and, later, the Washington Wizards.
MIchael Jordon wore it for Chicago Bulls famously and now alot of basketballers wear it like LeBron James
Andrey Arshavin who plays for Arsenal wears it
Ryo Miyaichi, Arsenal (On loan at Bolton).
Barry Bonds
yes you or they can wear the number that they want
Alex Morgan
He wore the famous number 7.
cause they were more famous and had lots af people ...
# 32
Andrea Pirlo
ted Williams
Wilt Chamberlain
drew bledsoe
she wears a star of david!