Originally posted by Rob.
The problem is your player can't sign with a rookie team since he already has experience. Not sure why they wouldn't just throw you on a sophomore team but if you wait about 5 games the rookie tier will be caught up with you and you should be good to sign then.
For future reference there is a "catch up" button that will appear on your page in the offseason and it will advance you to the next tier if you are caught in between. That time has passed though since it's only available in the offseason.
Yeah I wish more people would realize there is 4 levels to rookie, and in order to sign with a rookie team you either have to be level 0, or wait until those rookies catch up to you, or use the catch up feature in the offseason to sign with a Sophomore team.