Create a player won't work

Vanc0uver

Does anyone know why I can't create a player, it tells me that my name is invalid. I'm using my actual name, no numbers or symbols, no profanity just a normal name. It tells me the name is invalid. 

Djacks710

I was having same issue when trying my own name so I switched it to an actual MLB legend aka HOFer (Ozzie Smith) and it worked so apparently you can only use real MLB Legends as name