I read that he just needs rest and he should be fine for FGs and EP. Kickoffs will very possiby be Jon Doerer. Yoon is none too happy about that.
I get the feeling Polian is going to emphasize kicking the ball out of the endzone. No returns. I think Yoon's job was hang time to the endzone hoping for a return where the coverage got to him before the 25 yards line.
I am not sure which is best.