Armstrong collected eight tackles (four solo) in Sunday's loss to Seattle.
Armstrong got the start at left outside linebacker as expected, replacing Reuben Foster (ankle) who is expected to miss at least a few more weeks. The 28-year-old held his end of the bargain in terms of wrapping up the ball carrier, finishing just behind NaVorro Bowman for the team lead in tackles. Armstrong looked shaky in coverage at times, but for IDP purposes, his run defense should keep him relevant until Foster returns from injury.
Armstrong replaced the injured Reuben Foster (ankle) Sunday, racking up six tackles (five solo) in a loss to Carolina.
The 49ers suffered a scare when their prized rookie linebacker went down with an apparent ankle injury in the first quarter. Foster reported that his injury isn't a serious one and that he would be back soon. Armstrong would be in line to start -- and gain temporary IDP value -- if Foster isn't able to suit up Sunday against the Seahawks.
Armstrong recorded five tackles in Thursday's preseason finale against the Chargers.
Armstrong lost the starting outside linebacker job battle to Reuben Foster, but he appears to be a lock to make the final 53-man roster as a backup. The 28-year-old should be first in line to enter the starting lineup should any of the 49ers' linebackers go down to injury this season.
Armstrong lined up at weakside linebacker with the first-string defense during Tuesday's practice and is competing with Reuben Foster to replace Malcolm Smith (pectoral), according to Matt Maiocco of NBC Sports Bay Area.
Armstrong has been alternating first-unit reps with Foster since Smith was placed on season-ending IR on Sunday. The 28-year-old performed well Tuesday, picking off a tipped pass off the hands of NaVorro Bowman. Foster's strong start to camp coupled with his tremendous potential figure to give him the early edge, but the 49ers are clearly giving both linebackers a chance to earn the starting job leading up to the regular season.
Armstrong reportedly looked "energetic as ever," showing no signs of the pectoral injury that cost him the final 14 games of the 2016 season. He looks set to enter the summer as a key backup at outside linebacker.
|4||10/1/17||@ ARI||4:05 pm|
|5||10/8/17||@ IND||1:00 pm|
|6||10/15/17||@ WAS||1:00 pm|
|8||10/29/17||@ PHI||1:00 pm|
|Bye: Week 11|
|13||12/3/17||@ CHI||1:00 pm|
|14||12/10/17||@ HOU||1:00 pm|
|17||12/31/17||@ LAR||4:25 pm|
|2015||San Francisco 49ers||5||3||3.0||0||0||0||0||0.0||0||0||0|
|2016||San Francisco 49ers||2||8||7.0||1||0||1||5||5.0||5||0||2|
|2017||San Francisco 49ers||3||20||13.0||7||0||0||0||0.0||0||0||0|
|Year||Team||G||Fum||Lost||Fum Forced||Own Rec||Opp Rec||Yds||Tot Rec||TD|
|2015||San Francisco 49ers||5||0||0||0||0||0||0||0||0|
|2016||San Francisco 49ers||2||0||0||0||0||1||0||1||0|
|2017||San Francisco 49ers||3||0||0||0||0||0||0||0||0|