Just seen a player with the squad number '-1'!

iv just played blackburn in the second season of the EPL and david Hoilett's shirt number is -1! On his profile it doesnt say anything though, so i think it might be a case of him being assigned a random number due to not being registered, i thought it was strange though, the only player i remember with symbols on his shirt was Ivan Zamorano at Inter in the 90s.

it's because he isn't registered, you're right. There's lots of them around when a team players their under 19's or whatever, due to the fact that you can only register 25 numbers in the EPL from season 2