Free-agent receiver Laurent Robinson isn't the only free-agent wideout working out for the 49ers this week. Austin Collie, who had a workout with the team in June, also will get a second look, a league source said.
Collie, who played at Oak Ridge High outside of Sacramento, worked out for coaches and scouts on June 13. He has recovered from a torn pattela tendon that cost him most of the 2012 season in Indianapolis, and he has passed all the neurological tests associated with concussions. Collie has suffered three of them since entering the NFL in 2009. One of the 49ers team doctors, Daniel Garza, is a specialist at Stanford Hospital in concussions and head injuries.
Collie, who played at BYU, has been training in Utah this offseason. Like Robinson, Collie has interest from several other teams, including the Patriots with whom he's also had a workout. Robinson has visited the Dolphins, Jets, Lions and Patriots.
Robinson also has struggled with concussions, including last year with the Jaguars. Jacksonville released him one year after signing him to a five-year contract.
The 49ers began training camp with Michael Crabtree (Achilles') and Mario Manningham (ACL) on the physically unable to perform list. Since then, Kyle Williams, A.J. Jenkins, Kassim Osgood and Quinton Patton all have been injured. Patton (finger) continues to practice but cannot catch passes.
-- Matt Barrows