Oh, my.

As if expectations for the Michigan State men's basketball team weren't high enough already following Miles Bridges' decision to return for his sophomore season, one national sportsbook is now officially listing the Spartans as the sole favorite to win the 2018 national championship.

The Westgate Superbook in Las Vegas now lists the Spartans as 7-to-1 favorites to bring home the championship trophy in San Antonio's Alamodome, according to CBSSports.com's Kyle Boone. (It appears you can't view the casino's actual book on their website unless you're a paying member.).

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Coming in after the Spartans are Kentucky, Louisville and Duke, all at 10-to-1. Kansas and Arizona are 12-to-1 and the list tails off from there.

It's not the biggest jump in the offseason, however, as Missouri has gone from 300-to-1 to 40-1. However, among the legit contenders for the title, MSU has risen from 20-to-1 odds to its current place.

That rise is entirely attributed to Bridges' decision. With Bridges staying in East Lansing, the Spartans return four of their top five scores: Bridges (16.9 ppg), Nick Ward (13.9), Joshua Langford (6.9) and Cassius Winston (6.7).

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That quartet, of course, makes up Tom Izzo's 2016 recruiting class, which was ranked No. 2 nationally. The group had its ups and downs last season, but if everyone makes natural progressions their sophomore years, the sky's the limit for the Spartans.

And Vegas apparently knows that.

While Michigan State did miss out on both Mark Smith and Brandon McCoy to round out the 2017 recruiting class, one target has yet to make a decision - Brian Bowen.

The Spartans already have a pair of players in this year's recruiting class coming in - five-star Jaren Jackson and four-star Xavier Tillman. The possible addition of Bowen increases those odds even more.

Follow digital sports producer Phil Friend on Twitter @Phil_Friend.