on VegasInsider started at -19.5. Interesting, last year against Clemson, we saw opposite movement on game week. some others still at -20.5

Below is excerpt I cut from GoVols247 website.
Interesting.

But players and coaches alike have said they haven’t addressed Appalachian State’s most memorable upset of a major program nearly a decade ago despite the fact that two of Tennessee’s assistant coaches, offensive coordinator Mike DeBord and defensive line coach Steve Stripling, were on Michigan’s staff in 2007.

What I see is opened at -23.5 and now down to -20.5.

vegasinsider has conflicting data on their site, but yes, I've seen that as well.

What it tells me is the bettors love UT below 21 and App above 21. That is why the game has moved up and down.

I could never bet on App, but I think we have a shot at making some noise. A lot of people I talk to think Tennessee is over rated. I know Hurd is gonna be a beast, but their D is not nearly as imposing as what we saw at Clemson, at least on paper.

Our guys need to use all of this as locker room motivation for this game. From a pure betting perspective nobody will give us any credibility until we prove otherwise on the field. It is time for our guys to step up and play to a level they are capable of on the big stage.