I think both the jersey and shorts have to be of another co lour.
Yes. A soccer player may wear undershorts if they are completely concealed, or if any exposed part of the garmet matches the color of the main color of the kit shorts.
Australian footballers wear much the same as soccer and rugby players: team guernseys, shorts, club socks and studded football boots.
If you are talking about American football, then yes, although in the NFL no two players on a team can have the same number, and in the NCAA no two players on a team can play in a play together if they have the same number.
The answer may vary, but 350-500 football players can fit on the field at one time.
22There are 12 football players on the field at the same time. (both sides combined)
Football players in America do not play the same game as football players in England play. The game that America calls football is the game that England calls gridiron. The game the England calls football is the game America calls soccer. acutally i live in England and we refer to Americans football as American football. imaginative i know
well they are about the same they always have concussions