By Jay Skurski
The Buffalo Bills made two changes to their practice squad today, announcing they've signed defensive back Mana Silva and offensive lineman Andrew Jackson to the squad and releasing defensive back Isaiah Green and tight end LaMark Brown.
Silva, 6-foot-1 and 214 pounds, was with the Bills on the practice squad for five weeks last season. He was released from the Dallas Cowboys' 53-man roster last week when the team signed former Buffalo punter Brian Moorman.
The 6-5, 300-pound Jackson was a seventh-round pick of the Atlanta Falcons in 2011. He spent that season on the Falcons' practice squad and was released at the end of training camp this past summer.
Green was an undrafted free agent out of Fresno State, while Brown joined the Bills' practice squad after being released by Atlanta on Sept. 3.
