I thought this was really cool:
http://www.fightingillini.com/news/...tire-jersey-of-illini-great-derek-harper.aspx
I looked up what other Illini players have had their NBA numbers retired and this is what I found.
Jerry Colangelo as an owner and general manager with the Phoenix Suns:
http://www.nba.com/suns/history/00826007.html
Johnny Kerr has a statue at the United Center, but I couldn't find any official record that he has a jersey in the rafters for his time as a Bulls player, coach and announcer:
http://www.nba.com/bulls/photogallery/kerr_090210.html
Nick Anderson's jersey isn't retired by the Magic, but there is a chance that could happen:
https://orlandomagicdaily.com/2014/01/16/nick-anderson-deserves-number-25-retired/
http://www.fightingillini.com/news/...tire-jersey-of-illini-great-derek-harper.aspx
I looked up what other Illini players have had their NBA numbers retired and this is what I found.
Jerry Colangelo as an owner and general manager with the Phoenix Suns:
http://www.nba.com/suns/history/00826007.html
Johnny Kerr has a statue at the United Center, but I couldn't find any official record that he has a jersey in the rafters for his time as a Bulls player, coach and announcer:
http://www.nba.com/bulls/photogallery/kerr_090210.html
Nick Anderson's jersey isn't retired by the Magic, but there is a chance that could happen:
https://orlandomagicdaily.com/2014/01/16/nick-anderson-deserves-number-25-retired/