The Seahawks waived/injured Cottom (Achilles) on Saturday, Adam Caplan of ESPN reports.
During Wednesday's training camp practice, Cottom sustained a potential Achilles tear. The Seahawks' move Saturday seems to confirm those fears, but the fullback/tight end will land on their injured reserve list, if he clears waivers.
Cottom is going through tests to verify if his Achilles is indeed torn. If that is the case, his season will suffer an untimely end as he was competing to make the roster.