Obscure rule preventing Raiders from promoting training camp in Southern California

The Las Vegas Raiders are heading back to Southern California for training camp. However, they must keep their return under wraps.

The Raiders training camp is in Costa Mesa, roughly 40 miles south of Los Angeles, home of the Rams and the Chargers. According to league policy, the Raiders are infringing on each club's territory, so they can't advertise their return.

"Every club has an exclusive home territory extending 75 miles in all directions from the exterior corporate borders of the city for which it holds a franchise," the policy says, via ESPN's Paul Gutierrez. "If another club holds its preseason training camp within that exclusive territory then it cannot be marketed locally."

The Raiders also can't invite L.A. or Orange County media to camp, and none of their practices can be open to fans. Gutierrez added some VIPs, select season-ticket holders, sponsors and invited guests will be allowed to attend. 

Perhaps the Rams and Chargers feel threatened. Los Angeles was the Raiders' home from 1982 to 1994, and they remain popular in the area. Coming back to Southern California gave the Silver and Black a chance to reconnect with longtime supporters. 

Unsurprisingly, Vegas owner Mark Davis seems miffed about the Rams and Chargers taking this opportunity away.

"It would be nice if all the fans could be there, but, whatever," Davis told Gutierrez. "Like I said, the Chargers and Rams have that ability."

Coincidentally, the Raiders can earn revenge against both teams this upcoming season. They face the Rams in a Week 7 road game and the Chargers in Weeks 1 and 18.