Randy Arozarena also walked, singled and scored three runs for Seattle, which is 5 1/2 games behind Texas and Houston in the American League West.
NFL insiders believe Sam Darnold could miss up to four games.
After coming within one victory of reaching its first World Series last season, Seattle is nearing elimination from playoff contention.
Kenneth Walker III ran for 173 yards and scored two touchdowns in his first game since leaving the Seahawks in free agency.
Cal Raleigh hit his 22nd home run.
Time’s running out for the Mariners to make their playoff push.
Randy Arozarena homered twice and had four RBIs for the Mariners.
Anacortes dusted Squalicum Thursday night behind five TDs from Washington State-commit Ryan Harrington.
Tests don’t show any fracture
Texas dropped three games behind AL West-leading Houston and two games back for the last AL wild card.