Buried in a MLB.com article about Marlins owner Jeffrey Loria’s economic justifications for conducting a fire sale of his roster is a tasty little nugget about Las Vegas. The quote comes straight from MLB COO Bob DuPuy.

Las Vegas is ripe for relocation, but there are concerns from the league regarding betting on baseball. When Las Vegas officials made their pitch to the Montreal Expos, who eventually became the Washington Nationals, the issue of betting wasn’t resolved.

“Las Vegas made a very attractive proposal,” said DuPuy about the city’s efforts to attract the Expos. “There are issues with regards to Vegas indicated during that proposal. [There was] no willingness to take baseball off the books. I know that’s a very, very serious issue with the Commissioner.”

Taking gambling off the books isn’t a complete dealkiller, but it has to be pretty close. As much as the major sports would love to be the first to get a share of the big money that comes to Vegas (and stays there, as the ad says), none of the leagues wants to be remotely associated with gambling. That goes double for baseball, which still has the stench of the steroids scandal all over it. Though I wouldn’t be surprised with the notion that if one league were brave enough to enter Las Vegas despite the sport still being on the books, the others would be falling all over themselves to be next.