2
Professional footballers have to show a number but fans and supporters don't have to. it is completely optional
Steve Sidwell wears number 4 for Aston Villa.
Strip
10
strip
XAVI for BarcaTERRY for Englandjust two ones i thought up on the spot
They were Harry Kewell the Australian and John Arnie Rissa the Norwegien footballers.
Ashley Young wears the number 11 shirt for England
There are sometimes numbers on rugby shirts. But this is not the number of the player who is wearing the shirt like in most other sports
number 10
Will Greenwood played 12 for England despite wearing the number 13 shirt because of superstition. He played 12 to Gusscott at 13 before playing 12 to Tindall at 13.
Rooney wears number 10.