The Clemson men's basketball team took a giant leap of six spots in The Associated Press Top 25 poll released on Monday, and Villanova moved back to the top of the poll after a 1-week hiatus.
The Tigers, who reentered the poll last week at No. 25 after not being ranked for almost eight years, are now at No. 19. Clemson is coming off a 74-70 victory over Boston College and a 74-69 overtime win over Louisville last week.
The Tigers, who are 14-1 on the season, moved from No. 25 to No. 17 in the USA Today coaches poll. Clemson plays at North Carolina State on Wednesday.
Villanova returned to the top spot in Monday's new poll after an upset-filled week that included losses by No. 1 Michigan State and No. 2 Duke. The Wildcats got 52 of 65 first-place votes to move up from third to No. 1, where it spent three weeks in December.
West Virginia was next to capitalize on a big win, along with the chaos of a week that saw four top-5 teams lose to unranked opponents and six top-10 teams lose overall.
West Virginia - which beat then-No. 7 Oklahoma last week - earned 12 first-place votes and secured the program's highest ranking since December 1959 during Jerry West's senior season. Virginia climbed five spots to No. 3 and got the remaining first-place vote, followed by Michigan State after the Spartans' loss at Ohio State.
Purdue and Wichita State tied for No. 5. Duke, the preseason No. 1-ranked team, fell five spots to No. 7 after losing at North Carolina State. Texas Tech, Oklahoma and Xavier rounded out the top 10.
Villanova (14-1) lost at Butler on Dec. 30, then had to wait a week before beating Marquette on Saturday.
West Virginia (14-1) hasn't lost since falling to Texas A&M on opening night. That run includes a December home win against Virginia and Saturday's win against the Sooners and star freshman Trae Young.
No. 8 Texas Tech (14-1) was the week's biggest climber. It moved up 10 spots after earning its first win at Kansas' Allen Fieldhouse in 18 tries along with a win against Kansas State for the program's best ranking since being seventh in March 1996.
Fifth-ranked Purdue (15-2) moved up eight spots for its highest ranking since February 2010 and carries an 11-game winning streak into Tuesday's trip to Michigan. No. 13 Seton Hall (14-2) also moved up eight spots, matching the biggest one-week AP Top 25 jump in its history.
Reigning national champion North Carolina took the biggest fall of any team that remained in the poll, sliding eight spots from No. 12 to No. 20 after road losses to now-No. 23 Florida State and Virginia . Arizona State fell seven spots to No. 11 after its overtime loss to Colorado.
No. 22 Auburn and No. 25 Creighton were new to the poll this week, though the Bluejays have been ranked in four previous polls this season. It's a different deal for the Tigers (14-1), who are ranked for the first time since January 2003 after wins against ranked Southeastern Conference opponents Arkansas and Tennessee last week.
Arkansas fell out from No. 22 after losses to Mississippi State and Auburn, while Texas A&M went from 11th to unranked after losses to Florida and LSU.