Currymand wore it
The famous Colombian footballer Carlos Valderrama wore the jersey number 10.
Was it Ronoldhino.
Pele for Brazil
Lionel Messi
Me I was a soccer player
Iniesta gerrard lampard Kaka Xavi
Cristiano Ronaldo wears 17 when he plays for Portugal.
Don't know of any famous, or otherwise, baseball player that wore a "?" Better rephrase your question.
Lionel Messi in his early years with Barca
Panos Bountoulousis who plays for Seaquam Seahawks
Lionel Messi in his early years with Barca
Dan Durante