The San Diego Chargers have signed free agent wide receiver and punt returner Mark Jones to a one-year deal. Originally drafted by Tampa Bay in the seventh round in 2004, the 5-9, 185-pound Jones ended up spending his rookie season with the New York Giants after being waived by the Buccaneers. He re-signed with Tampa Bay in 2005 and spent the 2005-07 seasons in Tampa Bay. Jones is a wide receiver, but his NFL experience has been exclusively as a punt returner. In 2007, he returned 12 punts for 143 yards (11.9 avg) with a long of 35. His year was cut short, however, by a knee injury that landed him on Injured-Reserve on Oct. 24. He has since recovered from that injury. ?Mark?s versatility was very attractive to us,? said General Manager A.J. Smith. ?He?s an experienced NFL punt returner and a solid player who will raise the level of competition in our camp.? For his career, Jones has 117 returns for 1,017 yards, an average of 8.7 yards per return. The 27-year-old Jones was born in Wallingford, Pennsylvania. He attended Strath Haven High School and the University of Tennessee. The Chargers have also waived four players. They include cornerback Stanley Franks, guard Charles Manu, running back Germaine Race, and defensive tackle Keith Shologan.