Youngest ever retirement?

meh...i generally just ignore what you say.....and you know i can't read.....
Wasn't they a 17 year old Manchester United who was playing for the reserves on hid debut and got his leg broke by a Boro player a few years ago.I think he got about £5 million compensation
I one had a great brazilian 18 year old retire because he couldnt get a work permit for any european team
in my brothers game this spanish defender was retired at the age of 21 cant remember his name
While I was managing killie I was trailing this amazing Spanish striker, pace of 18, finishing of 17, composure of 17 and retired at 18!!!