Not sure where the 10 came from but Wynn usually comes out with the first line, it was 8 went to 7.5 now back at 8. Sometimes they go by the offshore lines, the 9 I said earlier was probably an offshore line too. 8 seems to be the #. Most of the others don't even have it up yet. I usually bet over at the Hilton, I think they get theirs up late Sunday night.
So it opened at -10 (according to Vegasinsider) and it's now at -8 according to the same site (which is a compilation of all the Vegas sports books. I wonder if they lines are historically lower for Thursday night games because of messed up travel schedules and things like that.