Champaign, IL (Sports Network) - Derek Dimke kicked a go-ahead 21-yard field goal in the fourth quarter, and No. 23 Illinois held on for a 23-20 win over Western Michigan on Saturday to remain undefeated. The Illini (4-0) easily survived a final Broncos drive in the last 1:05 of the game after they were stopped on 4th-and-4 at the Western Michigan 32. The Broncos (2-2) didnt have any remaining timeouts and only made it to the Illinois 41. Alex Carder was sacked for a loss of seven yards, running time off the clock, and completed two final passes for 20 yards before it ticked to zero.