The season is still young, but some of the top teams in college basketball already have suffered a loss. Here are the top five one-loss teams:

5. Maryland (7-1) » The Terps lead the country in assists (19.1 per game) and are second in rebounding (46.4 pg). In its lone loss vs. Kentucky, Maryland 7-foot-1 center Alex Len dominated the Wildcats' young frontline of future NBA players.

4. Kansas (6-1) »

Like Maryland with Len, the Jayhawks have a dominating 7-foot presence in the middle. Center Jeff Withey is averaging 14.6 points, 8.1 rebounds and an NCAA-leading 5.7 blocks a game.

3. Georgetown (6-1) »

The Hoyas may have the best defense in the country. After holding Tennessee to just 36 points, the Volunteers' lowest point total since 1997, Georgetown held Texas to 41 points on 29.2 percent shooting. With four starters 6-foot-8 or taller, the Hoyas' length is giving teams problems.

2. Ohio State (5-1) »

Ohio State swingman Deshaun Thomas has emerged as one of the country's top scorers, averaging 21.0 points a game. The Buckeyes are also led by point guard Aaron Craft, who is known for his pressure defense and leads the team in assists (4.3 pg). Their lone loss of the season came in a 73-68 defeat by Duke, which has beaten three of last year's Final Four teams, including ...

1. Louisville (7-1) »

The Cardinals lost 76-71 to the Blue Devils, but Louisville was without Gorgui Dieng. The center fractured his wrist and will miss significant time. With Russ Smith, Peyton Siva and Chane Behanan, the Cardinals are talented enough to make up for the loss, but Dieng's shot-blocking ability makes Louisville a title contender.

- Jeffrey Tomik