Rumor: Willie Cauley-Stein may "free fall" into the late 'teens'

Willie Cauley-Stein went from a target to a pipe dream within one season.  Now the defensive stalwart may be falling to the late teens, according to multiple draft pundits..

Heard that Willie Cauley-Stein didn't work out incredibly well for some teams, which prompted further examination of his ankle and health.

— Steve Kyler (@stevekylerNBA) June 25, 2015

Cauley-Stein injured his ankle late in the 2014 NCAA Tournament.  The injury kept him sidelined for quite a while, though it didn't seem to bother him this season.  Now the injury may be an issue for Cauley-Stein in the future, and some GMs are concerned.  Some scouts believe he may need surgery mid-way through his rookie season.

Foot injuries can be the death call for big men; unfortunately, it seems like this injury may linger for a while.  If lottery teams lose interest in Cauley-Stein, it's been rumored that he may fall to the 'teens', and potentially the late 'teens.'  Will Danny Ainge take a shot at Cauley-Stein if he falls to 16?

It is hard to tell, but Cauley-Stein has showed interest in being a Celtic, just now in this fashion.

"I'd be hype if I ended up there (Boston)."

Cauley-Stein said this in hopes of Boston trading up to pick him.

Should the Celtics take the risk if he is available?