The Chargers expect to hear on Wednesday from Mayor Jerry Sanders whether they can play their scheduled game against the Houston Texans in Qualcomm Stadium, and they are narrowing down contingencies for playing elsewhere. ?The Chargers are working closely with Mayor Sanders and the fire and police departments to determine how best to deal with Sunday's scheduled NFL game at Qualcomm Stadium,? the team said in a statement. ?Protecting the public safety is the mayor's top goal, and the Chargers will continue to cooperate with the mayor to achieve this goal.? The Chargers arrived here last night for three days of practice in clean air in preparation for the game, wherever it is. ?Tell us where, and then under tough circumstances we'll go from there,? General Manager A.J. Smith said. It appears likely the Chargers will end up playing in Texas Stadium, home of the Dallas Cowboys if they can't play at home, sources said last night. The Cowboys have a bye Sunday.