CARSON, Calif. — Clint Dempsey had a goal and an assist and the Seattle Sounders beat the Los Angeles Galaxy 3-0 on Sunday. Defending MLS Cup champion Seattle (2-2-3) snapped a six-game road winless streak. The Galaxy (2-5-0) has lost two straight. Dempsey gave the Sounders a 1-0 lead in the 24th minute after heading
