A week that saw the three final undefeated teams lose -- two by a lot (OU to Alabama and Tennessee to Florida) and one by a little (Florida to Kentucky) -- prompts major changes in this week's college basketball power rankings.

FOX Sports national college basketball writer John Fanta reveals his latest top 25 rankings, headlined by two SEC powerhouses.

Tennessee is still 14-1 with road wins at Illinois and Louisville, a neutral-site win over Baylor and a home blowout over Arkansas, so the Volunteers can't drop too far. But that performance against the Gators on Tuesday will be a rough spot on their résumé all season -- and could come up in discussion on Selection Sunday.

When Bruce Pearl was fired at Tennessee in March 2011 and subsequently hit with a three-year show-cause penalty by the NCAA, there was no guarantee he'd ever coach at the high-major level again. I mean,

SEC Power Rankings after one week of conference play 1. Auburn Tigers (14-1, 2-0) The presumed No. 1 team in the country is also the No. 1 team in SEC Power Rankings. A few days a