Brooks (knee) passed a physical Tuesday, and the Seahawks activated him from the active/PUP list, John Boyle of the team's official site reports.
Brooks tore his right ACL in Week 17 of last season, spurring January surgery to repair the knee. Coach Pete Carroll expressed optimism in April that the middle linebacker would be able to practice at some point during training camp, and that has come to pass. Tuesday's move doesn't necessarily mean Brooks will be ready to go by Week 1, but he can participate in walkthroughs while increasing his activity level. Once he's healthy, he'll be a coveted IDP target after racking up 345 tackles in 33 games over the last two campaigns.