Ex-Seahawk Derrick Coleman could fill Falcons' void at fullback

The Atlanta Falcons addressed the void left by one-time Pro Bowler Patrick DiMarco with the additions of fullbacks Derrick Coleman and Soma Vainuku and also added depth to the offensive with the signing of offensive guard Hugh Thornton.

Coleman and Vainuku will compete for the fullback role after DiMarco departed to join the Buffalo Bills.

Coleman, who is deaf, was with Seattle when Falcons coach Dan Quinn was the defensive coordinator there. Coleman hasn't let his disability keep him from playing football, although he was out of action all of last season due to legal issues. Vainuku, who signed with the Houston Texas last year after going undrafted, played at USC under new Falcons offensive…