"Browns receiver Donte Stallworth opened training camp on the sideline after pulling a hamstring while training at home.

Acquired in free agency from the New England Patriots to take over the No. 2 receiver spot, Stallworth played catch with Braylon Edwards during Wednesday's first practice session. General Manager Phil Savage said Stallworth could miss a ''couple days.''

''He's a little sore; he's working with the trainers,'' coach Romeo Crennel said. ''He's shown that he'll get treatment all the time; he'll do whatever he has to do to get back.''

His absence could help young receivers Travis Wilson, Syndric Steptoe and Steve Sanders and journeyman Kevin Kasper, signed in January, catch the coach's eye. Joe Jurevicius, slated to play the third receiver spot, opened camp on the active physically-unable-to-perform list after undergoing the fourth surgery on his right knee since January, three due to a staph infection."