Buffalo Bills roster moves: Marcus Dowtin released

The Buffalo Bills continue to tweak their 53-man roster during their extended week following Thursday Night Football, announcing several more roster moves after yesterday's maneuvers that saw Thaddeus Lewis and Antoine McClain added to the roster, and Sam Young and Dustin Hopkins removed from it.

Marcus Dowtin has been released. The young linebacker had carved out a small situational role playing for Mike Pettine in recent weeks, but was also part of special teams punt coverage breakdowns in Thursday's loss to Cleveland. Taking his place on the active roster is Ty Powell, a rookie seventh-round pick out of Harding that couldn't make the cut in Seattle this past summer, and had been on the Giants' practice squad.

Powell is a name to watch; he played defensive end, linebacker and safety in college, and wowed at the Combine in February with a 4.6-second 40-yard dash and a 37-inch vertical while measuring in at 6'2" and 249 pounds.

The Bills also made the previously reported practice squad signing of quarterback Dennis Dixon, but still have one spot open on the practice squad after elevating defensive back Brandon Smith to the active roster. Smith, an undrafted free agent out of Arizona State in 2011, was a receiver in college but now plays cornerback. He replaces undrafted rookie Johnny Adams on the 53-man roster.

Updated Bills depth chart

#Bills: LB Ty Powell, CB Brandon Smith added to 53-man roster. LB Marcus Dowtin, CB Johnny Adams released. QB Dennis Dixon to practice squad

— Buffalo Bills (@buffalobills) October 8, 2013