Dain Dainja was an inside force Michigan State had no answer for and Matthew Mayer hit clutch 3s in the second half as Illinois ended the Spartans seven-game win streak with a 75-66 win on Friday night.
Dainja powered inside and scored with both hands to put up 20 points and lead the Illini. Mayer hit 3 of 6 from distance and scored 15 of his 19 points in the second half.
Illinois went on a 9-2 run to tie the game at 54-54, then took the lead on two free throws by Dainja, going in front for the first time since taking a 27-26 first-half lead. Mayer added a pull-up 3 to complete a run of 10 straight points.
Michigan State (12-4, 4-2, Big Ten) rallied to tie the game on a Tyson Walker jumper with 5:47 left, but Coleman Hawkins answered with a 3 to put Illinois (12-5, 3-3) back on top for good.
Terrence Shannon Jr. scored 17 points for the Illini. Hawkins scored all nine of his points in the second half and pulled down a team-high eight rebounds. Mayer blocked six shots.
A.J. Hoggard scored 20 points to lead Michigan State. Walker had 14 and Joey Hauser contributed 11 points and grabbed 11 rebounds.