Illinois pulled off a stunning upset in the South Region's Fourth Round, defeating No. 2 seed Houston 65-55 at the neutral Toyota Center. The Fighting Illini dominated the second quarter, unleashing a devastating 17-0 run that stretched a one-point deficit into an 18-point cushion (26-44). Houston mounted a brief comeback with a 9-2 run, but it wasn't nearly enough to overcome Illinois' suffocating defense and efficient offense. The Cougars' struggles were brutal—they endured a 58-consecutive-play scoring drought in the second half that essentially decided the game. Despite Emanuel Sharp's late layup cutting it to 55-62 with 42 seconds remaining, Illinois sealed it with four consecutive free throws from Kylan Boswell and Keaton Wagler down the stretch. The 3-point underdog Fighting Illini held Houston to just 55 points, advancing with a defensive masterclass that silenced the second-seeded Cougars' championship hopes.