In 1996 (part of the "glory days"), we entered the season ranked #2 in the country, behind Nebraska; with the greatest QB to ever strap on a helmet. We averaged almost 40 pts a game that year, and had future NFL players all over the field.
We entered the Memphis game ranked #6 in the country, losing to Florida earlier in the year, by a touchdown. Memphis won 4 games that season...let me repeat that again, Memphis won 4 games in 1996: Missouri (not the Missouri of today), Tulane, Cincinnati, and us...the #6 ranked team in the country...a team that was 7 and 1 coming in, and still in the thick of the National Championship picture...and, they held us to only 17 points.
That loss kept us from finishing in the Top 5. Again, I reiterate, Memphis won 4 games that year...they were Georgia State in those days; and beat a UT team that was far away from coming off a 4 and 8, 5 and 7 back to back seasons. When we lost to Memphis in '96, we were one of the top 5 programs in the country, with the best player in school history...Memphis won 4 games...Missouri, Tulane, Cincinnati, and us. Georgia St. is not even in the same zip code as that loss.
Btw, the LSU loss in the '01 SEC Championship, is the only other loss that I will even consider may be worse than the Memphis game. In fact, it's probably worse, considering we still haven't truly recovered from it.