Casino magnate Phil Ruffin is heading to the Bay Area on Tuesday to meet with  Oakland Athletics  brass about a potential site for a new ballpark, a source told the Review-Journal.

Ruffin has ownership of multiple properties in Las Vegas, including Circus Circus and the Las Vegas Festival Grounds adjacent to that.

That 37-acre festival ground site, located on the southwest corner of Las Vegas Boulevard and Sahara Avenue, will be the subject of the talks Tuesday, the source indicated.

The A’s have been looking for a site for a new ballpark in both Oakland and Las Vegas. Team officials have been to Las Vegas multiple times to scout locations.

A’s President Dave Kaval noted the team’s interest in the festival grounds early in the search process in Las Vegas, but the focus shifted away from that location as the team’s market research progressed.

Ruffin and the festival grounds site have reemerged as a “dark horse contender,” which is one reason why the A’s have yet to publicly identify the preferred Southern Nevada site, according to the source.