Currently Mata and Previously Gred Muller
Michael Ballack (Chelsea & Germany) Alessandro Nesta ( AC Milan & Italy) There are other players (JS Park, Danny Murphy, Boa Morte) but the top two are considerably more famous than these mentioned (in my opinion)
There have been numerous basketball players to wear the number 13 jersey. The most famous person was Wilt Chamberlain. Other players were Maurice Ager, Corey Brewer, and Luigi Datome.
Gerd Muller, Eusebio, Andrea Nesta and Michael Ballack.
Plenty do and have. The most famous is currently Alex Rodriguez for the NY Yankees
Not at all there are a huge number of soccer players and rugby players with size 13 feet.
Cicinho wears #13 for Brazil. He plays for Real Madrid in Spain currently. He is 5 ft 8 and weighs 159 lbs.
Hundreds have - perhaps the most famous #13s are Kurt Warner and Dan Marino.