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.
Lionel Messi in his early years with Barca
Don't know of any famous, or otherwise, baseball player that wore a "?" Better rephrase your question.
Panos Bountoulousis who plays for Seaquam Seahawks
Lionel Messi in his early years with Barca
Dan Durante