I've had that guy on my roster for the last three years and I am chompin' at the bit to snatch him up one more time. I check Sandbox like every couple hours and he still hasn't shown up yet. Wondering of anyone else has any ideas.
I haven't played sandbox for a while, but I believe they sometimes only add players after they've played in a game. Probably better to keep checking frequently, though...
Carter will be with the other "new player additions" that occur on Wednesdays when the wire resets. Since he's played before, he may become eligible next Wednesday, but I have to agree with Arlo that he will appear the week after he plays.