Clemson joined the other unbeaten Division I teams in The Associated Press' Top 25 on Monday.

The Tigers (12-0) were the only one of the four undefeated teams not to be ranked, but they moved in as No. 25, joining No. 1 UCLA (11-0), No. 12 Connecticut (10-0) and No. 20 Oregon (11-0) in the poll.

The ranking is the first for Clemson since Jan. 12, 1999. The Tigers returned four starters from the team that won five of eight games to close 2005-06, and all but three of the wins this season — Old Dominion, Furman and Mississippi State — have been by at least 10 points.

"Being ranked among the top 25 teams in the country is certainly a sign of progress in our program," coach Oliver Purnell, who is in his fourth season at Clemson, said Monday. "It is important to use this as motivation to work even harder to get better. We do not need to relax and view it as a major accomplishment at this time of year."

Tennessee (10-2), at No. 21, is the week's other newcomer. The Volunteers were ranked in the preseason Top 25 and for the first two weeks of the season before losing consecutive games to Butler and North Carolina in the NIT Season Tip-Off.

Since then, Tennessee has won six straight, including a decisive win over Memphis and last week's close victories over Oklahoma State (the Cowboys' only loss of the season) and Texas, 111-105 in overtime.

UCLA held the top spot for the fifth straight week. The Bruins, who beat Sam Houston State 75-61 and Michigan 92-55 last week, received all but one first-place vote.

North Carolina (10-1) was No. 2 for the second week in a row, receiving the other first-place vote and 1,720 points.

Florida, the only team besides UCLA to be No. 1 this season, jumped from fifth to third following its 86-60 victory over Ohio State last weekend.

sburgh, which bounced back from consecutive losses to Wisconsin and Oklahoma State with a 30-point win over Dayton, fell from seventh to round out the top 10.