Massachusetts is back in The Associated Press Top 25 for the first time in 15 years.
The unbeaten Minutemen, off to their best start since 2010-11, were ranked 24th in the latest AP poll, which was released Monday.
Michigan State remained atop the poll for the second straight week, receiving 56 first-place votes from the 65-member national media poll.
Massachusetts moved into the rankings for the first time since the first regular-season poll of 1998-99, three years after the school's only Final Four appearance, which was ultimately vacated by the NCAA because players, including star center Marcus Camby, accepted illegal gifts.
The Spartans (6-0) won three games last week to remain one spot ahead of No. 2 Kansas, which drew eight first-place votes.
Kentucky, the preseason No. 1, and Arizona moved up one spot each to third and fourth, respectively. Oklahoma State received the other No. 1 vote and jumped from seventh to fifth. Duke stayed at sixth.
Also new to the rankings this week is No. 23 Iowa (5-0), which is ranked for the first time since the final poll of 2005-06.
Information from The Associated Press was used in this report.