Jaguars' receiver Jerry Porter will miss part of training camp with a lingering hamstring injury, according to ESPN.com's John Clayton. Porter hurt the hamstring toward the end of an offseason practice in May, but it has yet to heal. Jacksonville does anticipate that he'll be ready for the beginning of the season. Porter played 16 games for the Raiders last season, catching 44 passes for 705 yards and six touchdowns. He signed a six-year, $30.4 million contract with the Jags this offseason.