The San Francisco 49ers activated defensive lineman Tank Carradine from the injured reserve list ahead of Sunday’s game against the Seattle Seahawks.To make room on the roster, the team expectedly waived linebacker Ray-Ray Armstrong.The 6-foot-4, 270-pound Carradine was placed on injured reserve on Sept. 25 after appearing in each of the team’s first three games this season (two starts) where he registered seven tackles and one sack.Carradine practiced the past two weeks after returning from a high-ankle sprain that cost him seven games.The 6-3, 220-pound Armstrong appeared in each of the team’s 10 games this season (five starts) and registered 53 tackles, two interceptions, two passes defensed, one sack and one forced fumble.
