The San Francisco 49ers have been weighing placing Arik Armstead on the shelf for most of the season.
He’s been listed on midweek injury reports all regular season, and after aggravating the a shoulder ailment on Sunday against the New Orleans Saints and meeting with doctors on Monday, the team decided to shut him down for the season by placing him on the injured reserve.
Armstead started four games, has 21 tackles, 2.5 sacks and a forced fumble this season. He was the 49ers’ top pick out of Oregon in the 2015 draft.
Pro Football Focus rates Armstead poorly with the second-to-worst grade out of the defensive starters behind Ahmad Brooks. But, he’s young and has flashed glimpses of strong play, utilizing his 6-foot-7, 292-pound frame to his advantage.
To replace him on the roster, the team claimed Chris Jones who was previously with the Miami Dolphins. Jones played seven games before being waived. In that limited action, he logged seven tackles.
Redmond to miss rookie campaign
Niners defensive coordinator Jim O’Neil confirmed Tuesday that cornerback Will Redmond will remain on the injured reserve.
Redmond was the team’s third-round pick in the 2016 draft.
The 49ers had hoped he would be their one player to come off the IR this season, but his surgically repaired knee isn’t ready for game action.
Redmond tore his ACL before the draft, but that didn’t stop general manager Trent Baalke from picking him with a relatively high pick. Baalke has a reputation for valuing players recovering from the debilitating injury as he’s selected seven players who fit that classification.
Other roster moves
The 49ers on Tuesday parted ways with wide receiver Keshawn Martin, who joined the team at the end of September.
Martin fumbled a kick return earlier this season and hasn’t seen the field since. His release made way for Chris Harper, another receiver, to be activated from the practice roster.