Odds and ends

The L.A. Chargers have acquired QB Cardale Jones from the Buffalo Bills for an undisclosed conditional draft pick. … The L.A. Rams have signed veteran quarterback Dan Orlovsky. He is likely to compete with Sean Mannion for the backup job behind No. 1 draft pick Jared Goff. … The Oakland Raiders have signed second-round pick safety Obi Melifonwu to a four-year contract. Melifonwu was picked 56th overall out of UConn in April’s draft. …

The Minnesota Vikings have signed two-time Pro Bowl defensive end Everson Griffen to a contract extension. Since becoming a full-time starter in 2014, Griffen has 30½ sacks, the fifth most in the league during that span. … Safety Reshad Jones has been placed on the active-nonfootball injury list by the Miami Dolphins for the start of training camp.