Seahawks sign LB Tyrell Adams, FB Brandon Cottom

The Seahawks have added a pair of rookies who tried out for the club over the weekend to the 90-player roster. Seattle has reached deals with West Georgia linebacker Tyrell Adams and Purdue fullback Brandon Cottom. In corresponding roster moves, the Seahawks waived offensive guards C.J. Davis and Nate Isles, the latter of whom was…