Complex sentence: Numbers were originally used to also indicate position, with starting players being assigned numbers 1--11, although these numbers often bear little or no significance in the modern game other than the players' favourite numbers and the numbers available.
Split into simpler sentences: Numbers were originally used to also indicate position, with starting players being assigned numbers 1--11. Although these numbers often bear little or no significance in the modern game other than the players' favourite numbers and the numbers available.