the most famous sport star to wear number 23 is David Beckham LeBron James is also a famous #23.
One of the most famous sports persons to wear the number 46, is Valentino Rossi, World Moto GP Champion. (Motorbike Road Racing Sport)
There are a lot of famous soccer players that wear number 4. A couple are Cesc Fabregas and Sergio Ramos.
Yao Ming is the most famous player to wear the number 11.
He wore the famous number 7.