The reigning NFL Champions are expected to repeat in the 2017-18 NFL season. The latest NFL Super Bowl LI odds have the New England Patriots atop the list of football teams with the best chances to win it all. However, the Dallas Cowboys team led by young and talented stars Dak Prescott and Ezekiel Elliott are also in the conversation. Meanwhile, several teams are considered serious longshots in terms of winning the 2018 Super Bowl when it arrives next season.

Pats, Cowboys lead contenders

It's no surprise that the New England Patriots lead all teams on the odds list of Super Bowl 2018 contenders.

New England is an 18 to 5 favorite to capture the Lombardi Trophy for a second-straight year. The team brings back plenty of talent including star quarterback Tom Brady and their receivers such as Rob Gronkowski and Julian Edelman, but they've also added more help over the offseason. That includes former New Orleans Saints receiver Brandin Cooks and Indianapolis Colts tight end Dwayne Allen via trade. Their offseason moves have plenty of analysts still high on the Patriots' chances to take it all.

Another team that's in the discussion but is on the "wait and see" list for many people is the Dallas Cowboys. They're second on the odds list at 11 to 1 odds at Vegas Insider. Dallas exceeded expectations last season behind quarterback Dak Prescott and running back Ezekiel Elliott.

This will mark the official season where Tony Romo is no longer a part of the roster, and fans will wait to see if that dreaded "sophomore slump" takes place for last year's rookie stars.

Tied for third on the list are the Green Bay Packers and Seattle Seahawks with 12 to 1 odds, followed by last year's Super Bowl runner-up team, the Atlanta Falcons.

Matt Ryan and company suffered a disappointing collapse against the Patriots in the 2017 Super Bowl, and are 13 to 1 favorites to win it all in 2018.

The Houston Texans and Oakland Raiders each have 15 to 1 odds, while the Denver Broncos and Pittsburgh Steelers each have 18 to 1 odds. Completing the top ten are the New York Giants (22 to 1), Kansas City Chiefs (25 to 1), Indianapolis Colts (30 to 1), Minnesota Vikings (30 to 1), and the Arizona Cardinals (32 to 1).

Biggest longshots?

Five franchises have low expectations for the coming season, and that's probably based on how bad they were last season, coupled with the fact they didn't make any huge trades or moves to revamp their rosters, outside of the NFL Draft. The Chicago Bears shocked everyone by drafting quarterback Mitch Trubisky with the No. 2 pick, and they'll have 125 to 1 odds to win the Super Bowl. The New York Jets and L.A. Rams each have 150 to 1 odds to win it, while the San Francisco 49ers and Cleveland Browns are 300 to 1, making them the biggest long shots of all teams.

The 2017-18 NFL season officially gets underway on Thursday, September 7th, as the Patriots host the Chiefs in a marquee matchup. Which team will end up taking it all when the next NFL season has concluded?