SAN DIEGO (AP) — Padres lead investor Peter Seidler is one of three prominent San Diegans interested in bringing a Major League Soccer expansion team to San Diego, apparently with the idea of eventually sharing a stadium in Mission Valley with San Diego State's football team. Seidler said any discussions about bringing the MLS to San Diego are separate from the contentious issue of keeping the NFL's Chargers. SDSU shares aging Qualcomm Stadium with the Chargers, who tried to leave for Los Angeles last year and are now attempting to get a measure on the November ballot that would raise the hotel tax to help pay for a downtown stadium and convention center annex. Former Padres owner John Moores had been interested in helping bring an MLS team to San Diego but no longer is after he was twice thwarted in attempts to buy clubs in the English Premier League, most recently Everton in February. MLS expansion guidelines include a local ownership group with the appropriate financial resources, a comprehensive stadium plan where the ownership controls the venue and a history of strong fan support for soccer matches and other sporting events. [...] emails obtained by The Associated Press through a California Public Records Act request show that SDSU has been in contact with Mike Stone and Altman at least since April 2015. On Jan.