The most capped Brazilian footballer is Cafu.
George Gregan is the most capped rugby player of all time
The best footballer currently in the world is Lionel Messi, he is one of the youngest and most fantastic footballer of all time.
An official fan e-mail address for John David Baird, the Scottish footballer, is not known at this time.
The Brazilian footballer Pele is the most famous footballer. He is the only player to win three world cups.
Xavi currently is the leader on the all time apps list. (as of 3.3.15)
Scottish is not a language. I think you are looking for Gaelic. It is a more or less an obsolete language now. The only people who speak regularly are up in the Scottish highlands, and even most of them speak English most of the time.
No most only wear them for special occasions.