The player I recalled was Mike Roberts, a 6'9" 235 lb forward from Eugene, Oregon.
He was in Knight's recruiting class, but never played for Knight. He was on the roster for all 4 years under Mike Davis. Basically never played. I really don't recall anything about his play, other than he was a white guy, very stiff & no good. Priller-like, but can't swear he was quite that bad......but maybe.
What I do remember was that he was Pat's recruit, which was very unusual. Davis got almost all the players (as far as assistants go....) toward the end of Knight's tenure.
I also specifically recall that Bob K never saw him play live before he committed. I am about 85% certain that he also never saw him on tape.
I did google him an found out a few other things about him. At one point he did live in Terre Haute....thus his interest in IU. One story did say that he talked to Bob knight 5-6 times during his recruiting. Also, when they recruited him the plan was for him to go to a prep school, which he did. After IU, he surprisingly was a GA for Knight at Texas Tech, and he has stayed in college coaching. As of 2012 he was Asst HC at UNCG. I don't know where he's at now.