Arizona and Kentucky held the first two spots in The Associated Press college basketball poll for a third straight week Monday. Wisconsin returned to the rankings for the first time since November.
Arizona widened its lead over its fellow Wildcats from last week by one first-place vote.
Arizona (23-2) won its 10th Pac-10 regular-season title in coach Lute Olson's 20 seasons after last week's sweep of a Bay area road trip. The Wildcats are the third team to go unbeaten on the road in the conference since the league expanded to 10 teams in 1978-79. The wins at California and Stanford extended Arizona's winning streak to eight games.
Arizona received 59 first-place votes and 1,787 points from the national media panel. Kentucky had 13 first-place votes and 1,737 points,
Kentucky (24-3) ran the nation's longest winning streak to 18 games with victories over Tennessee and Georgia. The Wildcats can wrap up an undefeated Southeastern Conference season by beating Vanderbilt and Florida.
The Gators, who host Kentucky on Sunday, and Texas each moved up one place to third and fourth. Oklahoma, which lost at Missouri last week, dropped from third to fifth.
Kansas moved from seventh to No. 6 - making it three Big 12 schools in a row in the rankings - and was followed by Pittsburgh, Marquette, Wake Forest and Duke.
The Blue Devils' 72-71 loss at St. John's on Sunday dropped them from sixth to No. 10, their lowest ranking of the season. They remained one of five teams to be in the Top 10 all season along with Arizona, Oklahoma, Texas and Pittsburgh.
Xavier, which has won 13 consecutive games, was No. 11 and was followed by Syracuse, Maryland, Illinois, Louisville, Notre Dame, Stanford, Memphis, Creighton and Oklahoma State.
The last five ranked teams were Dayton, California, Mississippi State, Wisconsin and Georgia.
Wisconsin (21-6) moved into the poll for the first time since being ranked 23rd and 22nd for consecutive weeks in November. The Badgers have won three straight, including victories over Michigan and Minnesota last week, and 11 of 13 overall. Wisconsin hosts Illinois on Wednesday and a victory would give the Badgers the Big Ten title.
Utah (21-5) dropped out from 22nd after beating BYU 71-64 last Monday in a matchup of the top two teams in the Mountain West Conference, then losing 76-69 at New Mexico on Sunday.
Memphis beat TCU and Cincinnati last week, and the Tigers' jump from No. 24 to No. 18 was the week's biggest. The biggest fall was Notre Dame's drop from No. 9 to No. 16. The Fighting Irish lost at home to Connecticut and at Rutgers.