Opening Line: Week 13 moves

Underdogs are 9-4 against the spread so far in Week 12. Ethan Miller/Getty Images

LAS VEGAS -- Sunday was a crazy day in the NFL, but the Sunday night game topped them all.

In the early games (1 p.m. ET/10 a.m. Vegas time), underdogs went 6-2 against the spread with outright upsets by the Jaguars (plus-10 and plus-400 on the money line) over the Texans, Buccaneers (who won their third straight after starting the season with eight straight losses) over the Lions, Chargers over the Chiefs (Kansas City's second straight loss after nine straight victories) and the Steelers over the Browns.

The Panthers won their seventh straight game, but they had to rally to top the Dolphins 20-16. Early Carolina backers who got minus-3.5 cashed on them while a lot of people pushed on the midweek line of 4. However, the Panthers closed minus-5 and it goes in the book as an ATS loss, snapping their league-high six-game spread-covering streak (see the NFL ATS standings chart at the bottom of the column).

The other crazy result from the early games was the Vikings and Packers playing to a 26-26 tie, the second under the NFL's new overtime rules as the teams traded field goals in the extra session. The Packers closed as a consensus 5.5-point home favorite, so the Vikings covered the spread while all money line wagers ended up being refunds.

In the afternoon games, the Cardinals routed the Colts 40-11 as a 3-point home favorite, but the other two games had much more drama. The Giants, winners of four straight and trying to move even closer to playoff contention, rallied from a 21-6 deficit in the fourth quarter only to lose 24-21 on a Dan Bailey field goal as time expired. The Titans beat the Raiders 23-19 (and cover as a 2.5-point road favorite) on a Ryan Fitzpatrick-to-Kendall Wright TD pass with 10 seconds remaining to at least temporarily move into the sixth and final AFC playoff spot.

And then there was the Sunday nighter.