WEDNESDAY, 3:22pm: The 49ers have officially placed Dorsey on season-ending IR, using the newly-opened roster spot to claim former Raiders linebacker Ray-Ray Armstrong off waivers, the team announced today in a press release.
Armstrong, who illegally taunted a police dog before a game against the Steelers earlier this month, served as a backup linebacker and special-teamer for Oakland. The 24-year-old played under current 49ers linebackers coach Jason Tarver last year, when Tarver was the Raiders’ defensive coordinator.
MONDAY, 3:20pm: It’s been a disappointing year for the 49ers, and that trend continued today, as the team received another piece of bad injury news. According to Rand Getlin of the NFL Network (Twitter link), defensive tackle Glenn Dorsey suffered a torn ACL on Sunday and will miss the rest of the season.
Dorsey, 30, joined the Niners prior to the 2013 season, and had a very strong first year with the club, totaling 50 tackles and a pair of sacks as the starting nose tackle. After missing 2014 with a biceps injury, the former first-round pick hasn’t had quite the same impact for San Francisco this year, with 18 tackles and no sacks in 10 games (seven starts).
Still, Dorsey’s absence will be felt by a squad that has seen plenty of departures on its defensive line within the last calendar year. With Dorsey out of action for most of Sunday’s game, Thomas Rawls ran wild on the Niners, piling up more than 200 yards on the ground for the Seahawks.