The Mercury News. The 49ers have seen their receiving corps decimated by injury this season, raising the question of whether they might seek reinforcements via trade. It appears familiar face Jauan Jennings is. The San Francisco 49ers beat the Seattle Seahawks in a thrilling 32-29 win. The 49ers remain undefeated at 5-0 as they look ahead to their Week 6 matchup against the Washington Commanders..