http://dailyillini.com/sports/2017/05/24/graduate-transfer-mark-alstork-signs-illinois/
So it seems rumors that nobody wants to play for Underwood may not be entirely true, although they still don't have a frontcourt and even with this addition have 3 remaining vacant scholarships.
But it does look like they will be able to field a team under their new staff as they look to improve after not finishing above 7th place in conference for six seasons in a row.