By Skip Charles in Vegas

The Tampa Bay Buccaneers have lived a charmed life, beating the odds this offseason, winning three straight road games to make a Super Bowl.

And they are an underdog to win it, even though it is essentially a home game.

BetMGM released its opening line for Super Bowl LV just before the AFC championship game was done, and to nobody’s surprise the Kansas City Chiefs are favored. They opened as 3.5-point favorites over the Buccaneers. The Chiefs easily handled the Buffalo Bills in the AFC championship game to advance to their second straight Super Bowl.

The over/under for the game opened at 57.5, a high number befitting two MVP quarterbacks. The line did dip to 56.5 last night, shortly after it was released. If the total closes at 57.5 or more it will be the highest total in Super Bowl betting history. The Patriots’ Super Bowl LI win over the Falcons and the Saints’ XLIV win over the Colts both closed at 57. Super Bowl LI went over and Super Bowl XLIV went under.

Being in the Super Bowl is something Buccaneers quarterback Tom Brady is used to. This will be his 10th Super Bowl, extending his NFL record. But this will be the first time in 19 years that he’s an underdog in a Super Bowl.

The Chiefs hadn’t covered a spread since Nov. 1, but that hadn’t slowed bettors down. They were a popular play in the AFC championship game as 3.5-point favorites and covered easily. It was the Chiefs’ first double-digit win since that Nov. 1 victory over the New York Jets.

Given Patrick Mahomes’ stature as the game’s biggest young star and the offensive potency of the Chiefs, there will be plenty of Chiefs bets coming in for Super Bowl LV. Especially since the Buccaneers took the long road to get to the Super Bowl. At least they’ll have home-field advantage; the Bucs are the first team to play a Super Bowl in their home stadium.