The Detroit Lions signed kicker Matt Prater to a three-year contract and quarterback Kellen Moore to a two-year contract.
"I am thankful for this opportunity and excited to come back to Detroit," Prater said in a statement. "I hope to do my part to help this team win."
Prater has made seven game-winning kicks. He made 20 of his final 23 field goals last season after going 1 for 3 in the first game.
Moore was a restricted free agent. A former undrafted free agent, Moore has been the third-string quarterback for the past few seasons.
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Aaron Wilson covers the Ravens for The Baltimore Sun