The Atlanta Falcons found a replacement for John Abraham on Wednesday by reaching an agreement with free-agent defensive end Osi Umenyiora on a two-year, $8.5 million contract.The 31-year-old Umenyiora gives the Falcons a slightly younger replacement at defensive end, but his production has declined in recent years. He had only six sacks for the Giants in 2012, when he started only four of 16 games. He had 55 tackles, five for losses, and one forced fumble.Briefly • Ravens: Free agent safety Michael Huff, who visited the Cowboys earlier this week, signed a three-year, $6 million contract. Huff, a former Texas Longhorn, played his first seven years with the Raiders. • Dolphins: Guard Lance Louis, formerly of the Bears, agreed on a contract. • Texans: Fullback Greg Jones, who has played his entire eight-year career in Jacksonville, signed a one-year deal with Houston. • Chargers: Offensive tackle Jared Gaither was released, one year into a four-year, $24.6 million contract. • Raiders: Defensive end Tommy Kelly, who played his entire nine-year career in Oakland, was released, saving the team nearly $4.8 million.