49ers (0-1) at Seahawks (0-1)
When: 1:25 p.m. TV/Radio: 2t /810, 107.7 Spotlight on: DE Arik Armstead: This would be a logical time for a breakout game for the 2015 first-round pick whose first season as a starter last year was marred by a shoulder injury. Armstead had a quiet season opener (three tackles, no QB pressures), but now faces a leaky offensive line that includes LT Rees Odhiambo, who will be making his second career start. The 49ers had zero sacks and two hits on QB Cam Newton in a Week 1 loss to Carolina. Transactions: The 49ers promoted CB Asa Jackson to the roster from the practice squad. In order to make room, the team waived CB Keith Reaser. Jackson spent four years with the Ravens and last season with the Lions. Injury notes: 49ers — LB Reuben Foster (ankle) is out; S Jimmie Ward (hamstring) is questionable. Seahawks — CB Richard Sherman (hamstring) is questionable.
THINGS TO WATCH
Including playoff games, the Seahawks have won seven straight in the series, their longest winning streak against the 49ers. They have outscored the 49ers 170-84 in that time.
Eight 49ers rookies combined to play 195 snaps on offense, defense and special teams in Week 1.
LT Joe Staley and LB NaVorro Bowman were the only 49ers who played when the 49ers last won in Seattle on Dec. 24, 2011. C Daniel Kilgore was inactive.