The Seattle Seahawks defeated the San Diego Chargers, 17-9, Friday night on two touchdowns by running back Sherman Smith and four interceptions by the secondary in the exhibition openeer for both teams.

Smith rushed from two yeards out early in the second quarter to cap a 64-yeard Seattle drive and give the Sea-hawks a 7-0 lead. Seattle quarterback Jim Zorn hit three of five passes on the drive for 42 yards after Seattle cornerback Dave Brown intercepted Bill Munson's pass.

Smith's second touchdown, a 4-yard run with 3:38 remaining, put Seattle in front 17.9. Smith also had runs of 10 and nine yards on the final Seattle intercepted a pass by San Diego's Cliff Olander.

Dan Fouts drove the Chargers 50 yards in 40 seconds to set up Rolf Benirschke's 35-yard field goal on the final play of the first half.

Benirschke also kicked second-half field goals of 22 and 30 yards to account for the rest of the Chargers points.

James Harris of the Chargers connected on passes late in the fourth quarter before fumbling deep in Seattle territory with 1:47 to go. The fumble was recovered by the Seahawks, who ran out the clock.