Trent Frazier tallied 16 points and five assists and No. 24 Illinois held off No. 10 Michigan State 56–55 on Tuesday in Champaign, Ill., and took first place from the Spartans in the Big Ten. Alfonso Plummer contributed 11 points and four assists for the Fighting Illini (14–5, 7–2 Big Ten), who were without top scorer and rebounder Kofi Cockburn for a second consecutive game due to a concussion. Marcus Bingham Jr. had 13 points and six rebounds for the Spartans (15–4, 6–2), and Gabe Brown added 10 points. Michigan State rallied from a 14-point deficit and had a chance to tie it with 0.2 seconds left, but Malik Hall missed one of two free throws and Illinois escaped with the one-point win. No. 1 Auburn 55, Missouri 54 Led by K.D. Johnson’s 17 points, Auburn protected its first-ever No. 1 ranking by edging Missouri in Columbia, Mo., and winning …