text: The 2016–17 season was another disappointing season for the Fighting Illini, as they finished the season at 18–14 and 8–10 in the conference, failing to make the NCAA Tournament for the fourth consecutive year. On March 11, 2017, the university announced via press release that Groce had been relieved of his duties as head men's basketball coach. The next day, the team was put into the NIT as a 2-seed. The team was coached during the NIT by interim coach Jamall Walker, making it to the quarterfinals before being eliminated by the University of Central Florida.
  2017–24: Brad Underwood era
  On March 18, 2017, Brad Underwood was hired by athletic director Josh Whitman. Underwood previously coached at Stephen F. Austin from 2013 to 2016, before spending one year at Oklahoma State. In Underwood's first season at Illinois, the team won each of their first five contests. After beginning conference play 0–8, they ended the season with a record of 14–18.
  While the 2018–19 season featured the debut of key pieces including Ayo Dosunmu, Giorgi Bezhanishvili, Andres Feliz, and Alan Griffin, the Illini posted one of the worst records in program history at 12–21 (7–13 in Big Ten). Despite the poor record, Illinois had many memorable moments such as upsetting #9 Michigan State at home and Bezhanishvili scoring 35 points against Rutgers, breaking the Illini record for most points by a freshman in a single game.