Alexander entered the game in the first half after Watters suffered a sprained right shoulder on a running play off left tackle.
Seattle's defense played tough, but were given little rest and eventually wore down in the second half of the game, surrendering 217 yards passing to quarterback Rich Gannon and four touchdowns.
Starter Matt Hasselbeck was benched in the third quarter in favor of quarterback Trent Dilfer, but returned to the game three plays later when Dilfer completed a long pass to receiver Darrell Jackson but suffered a concussion on a helmet-to-helmet hit from linebacker Elijah Alexander on the throw.
Hasselbeck later left the game after being banged up, while holding his left groin and nursing his hamstring and ankle.
Brock Huard, Seattle's third-stringer entered the game and like Hasselbeck and Dilfer, managed to dirty the back of his jersey rather than the front, from heavy Oakland defensive pressure.
Hasselbeck completed 14-of-28 passes for 167 yards with one interception and simply didn't have the time to hit his receivers, who struggled to get open in tight coverage.
Seattle's offensive line failed to pick up several blitzes, as did the backfield of fullback Mack Strong and Alexander. the right side of the line, with guard Chris Gray and tackle Chris McIntosh continues to be a focal point for defensive coordinators to apply pressure.
Hawks fall to Raiders
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