SAN DIEGO (AP) – The San Diego Chargers don’t know where or when they’ll play their next game.While they spent Monday taking care of their families and trying to find out if their homes survived the wildfires sweeping Southern California, the Chargers were busy Tuesday preparing to fly to Phoenix to practice at the Arizona Cardinals’ suburban headquarters.That means three days of hotels and bus rides and an unfamiliar workplace while wondering what’s going on back home.”How we handle that will have an impact on how it turns out on Sunday,” quarterback Philip Rivers said.It’s a drill familiar to some Chargers.Four years ago to the week, the Chargers were forced to move a Monday night game to Tempe, Ariz., on short notice because of deadly wildfires.The Chargers are scheduled to host the Houston Texans on Sunday afternoon at Qualcomm Stadium. But, as it was four years ago, the stadium is being used as an evacuation center. On Tuesday morning, there were about 10,000 evacuees at Qualcomm, and smoke hovered over the stadium in early afternoon.Qualcomm is in Mission Valley, northeast of downtown and out of harm’s way. The league, which is holding owners meetings in Philadelphia, is debating what to do. In 2003, the NFL was sensitive to the fact that the stadium served as an evacuation center.The Cardinals have a bye Sunday, and their stadium, located in Glendale, is scheduled to host a motorcycle show Friday through Sunday afternoon.