San Francisco 49ers running back Frank Gore, left, takes a handoff from quarterback Alex Smith during NFL football practice at 49ers headquarters in Santa Clara, Calif., Thursday, June 10, 2010. (AP Photo/Jeff Chiu)

San Francisco 49ers quarterback Alex Smith prepares to pass during NFL football organized team activities at the 49ers training facility in Santa Clara, Calif., Monday, May 17, 2010. (AP Photo/Paul Sakuma)

San Francisco 49ers linebacker Patrick Willis, left, and tight end Vernon Davis stretch during NFL football practice at 49ers headquarters in Santa Clara, Calif., Thursday, June 10, 2010. (AP Photo/Jeff Chiu)

San Francisco 49ers head coach Mike Singletary during NFL football practice at 49ers headquarters in Santa Clara, Calif., Thursday, June 10, 2010. (AP Photo/Jeff Chiu)

San Francisco 49ers 2010 first round draft pick Anthony Davis is shown during NFL football practice at 49ers headquarters in Santa Clara, Calif., Thursday, June 10, 2010. (AP Photo/Jeff Chiu)

San Francisco 49ers 2010 first round draft pick Mike Iupati stretches during NFL football practice at 49ers headquarters in Santa Clara, Calif., Thursday, June 10, 2010. (AP Photo/Jeff Chiu)

San Francisco 49ers 2010 first round draft pick Anthony Davis practices during NFL football practice at 49ers headquarters in Santa Clara, Calif., Thursday, June 10, 2010. (AP Photo/Jeff Chiu)

San Francisco 49ers quarterback Alex Smith (11) and quarterback David Carr (5) are shown during NFL football practice at 49ers headquarters in Santa Clara, Calif., Thursday, June 10, 2010. (AP Photo/Jeff Chiu)

San Francisco 49ers quarterback Alex Smith rolls out to pass during rookie football mini-camp at 49ers headquarters in Santa Clara, Calif., Friday, April 30, 2010. (AP Photo/Paul Sakuma)

San Francisco 49ers quarterbacks David Carr (5) and Alex Smith, right, warm up during rookie football mini-camp at 49ers headquarters in Santa Clara, Calif., Friday, April 30, 2010. (AP Photo/Paul Sakuma)

San Francisco 49ers wide receiver Ted Ginn, Jr. (19) catches a pass during rookie football mini-camp at 49ers headquarters in Santa Clara, Calif., Friday, April 30, 2010. (AP Photo/Paul Sakuma)

San Francisco 49ers wide receiver Dominique Zeigler (17) catches a pass during rookie football mini-camp, at 49ers headquarters in Santa Clara, Calif., Friday, April 30, 2010. (AP Photo/Paul Sakuma)

San Francisco 49ers wide receiver Ted Ginn, Jr. (19) catches a pass during rookie football mini-camp at 49ers headquarters in Santa Clara, Calif., Friday, April 30, 2010. (AP Photo/Paul Sakuma)

San Francisco 49ers wide receiver Josh Morgan catches a pass during rookie football mini-camp at 49ers headquarters in Santa Clara, Calif., Friday, April 30, 2010. (AP Photo/Paul Sakuma)

San Francisco 49ers quarterback David Carr (5) throws a pass during rookie football mini-camp at 49ers headquarters in Santa Clara, Calif., Friday, April 30, 2010. (AP Photo/Paul Sakuma)

San Francisco 49ers wide receiver Josh Morgan tries to catch a pass during rookie football mini-camp at 49ers headquarters in Santa Clara, Calif., Friday, April 30, 2010. (AP Photo/Paul Sakuma)

San Francisco 49ers quarterback Alex Smith (11) looks at new quarterback David Carr (5) during rookie football mini-camp at 49ers headquarters in Santa Clara, Calif., Friday, April 30, 2010. (AP Photo/Paul Sakuma)

San Francisco 49ers quarterback David Carr puts on his helmet during rookie football mini-camp at 49ers headquarters in Santa Clara, Calif., Friday, April 30, 2010. (AP Photo/Paul Sakuma)

San Francisco 49ers quarterback Alex Smith throws a pass during rookie football mini-camp at 49ers headquarters in Santa Clara, Calif., Friday, April 30, 2010. (AP Photo/Paul Sakuma)

San Francisco 49ers running back Glen Coffee (29) yawns while stretching at rookie football mini-camp at 49ers headquarters in Santa Clara, Calif., Friday, April 30, 2010. (AP Photo/Paul Sakuma)

San Francisco 49ers wide receiver Ted Ginn, Jr.(19) stretches in front of new quarterback David Carr, left during rookie football mini-campat 49ers headquarters in Santa Clara, Calif., Friday, April 30, 2010. (AP Photo/Paul Sakuma)

San Francisco 49ers wide receiver Dominique Zeigler (17) catches a pass during rookie football mini-camp at 49ers headquarters in Santa Clara, Calif., Friday, April 30, 2010. (AP Photo/Paul Sakuma)

San Francisco 49ers tight end Vernon Davis (85) smiles during rookie football mini-camp at 49ers headquarters in Santa Clara, Calif., Friday, April 30, 2010. (AP Photo/Paul Sakuma)

San Francisco 49ers quarterback Alex Smith (11) works out with quarterback David Carr, left, during rookie football mini-camp at 49ers headquarters in Santa Clara, Calif., Friday, April 30, 2010. (AP Photo/Paul Sakuma)

San Francisco 49ers wide receivers Michael Crabtree (15) and Ted Ginn Jr., left, watch NFL football minicamp at 49ers headquarters in Santa Clara, Calif., Friday, April 30, 2010. (AP Photo/Paul Sakuma)

San Francisco 49ers first-round draft pick Anthony Davis, a tackle from Rutgers, reacts during NFL football minicamp at 49ers headquarters in Santa Clara, Calif., Friday, April 30, 2010. (AP Photo/Paul Sakuma)

San Francisco 49ers first-round draft pick Anthony Davis, a tackle from Rutgers, runs during rookie football mini-camp at 49ers headquarters in Santa Clara, Calif., Friday, April 30, 2010. (AP Photo/Paul Sakuma)

San Francisco 49ers guard Mike Iupati (77), a first round draft pick from Idaho, puts on his helmet during rookie football mini-camp at 49ers headquarters in Santa Clara, Calif., Friday, April 30, 2010. (AP Photo/Paul Sakuma)

San Francisco 49ers safety Taylor Mays, a second-round draft pick from Southern California, stretches during NFL football minicamp at 49ers headquarters in Santa Clara, Calif., Friday, April 30, 2010. (AP Photo/Paul Sakuma)

San Francisco 49ers linebacker Navorro Bowman, a third round draft pick from Penn State, stretches during rookie football mini-camp at 49ers headquarters in Santa Clara, Calif., Friday, April 30, 2010. (AP Photo/Paul Sakuma)

San Francisco 49ers head coach Mike Singletary looks on during rookie football mini-camp at 49ers headquarters in Santa Clara, Calif., Friday, April 30, 2010. (AP Photo/Paul Sakuma)

San Francisco 49ers guard Mike Iupati (77), a first round draft pick from Idaho, gathers in a huddle during rookie football mini-camp at 49ers headquarters in Santa Clara, Calif., Friday, April 30, 2010. (AP Photo/Paul Sakuma)

San Francisco 49ers guard Mike Iupati (77), a first-round draft pick from Idaho, smiles during rookie football mini-camp at 49ers headquarters in Santa Clara, Calif., Friday, April 30, 2010. (AP Photo/Paul Sakuma)

San Francisco 49ers guard Mike Iupati, left, a first round draft pick from Idaho, works out during rookie football mini-camp at 49ers headquarters in Santa Clara, Calif., Friday, April 30, 2010. (AP Photo/Paul Sakuma)

San Francisco 49ers guard Mike Iupati, a first-round draft pick from Idaho, is helped with his helmet during rookie football mini-camp at 49ers headquarters in Santa Clara, Calif., Friday, April 30, 2010. (AP Photo/Paul Sakuma)

San Francisco 49ers first-round draft pick Anthony Davis, a tackle from Rutgers, works out with the blocking sled during rookie football mini-camp at 49ers headquarters in Santa Clara, Calif., Friday, April 30, 2010. (AP Photo/Paul Sakuma)

San Francisco 49ers first-round draft pick Anthony Davis, a tackle from Rutgers, goes through drills during rookie football mini-camp at 49ers headquarters in Santa Clara, Calif., Friday, April 30, 2010. (AP Photo/Paul Sakuma)

San Francisco 49ers quarterback Tavita Pritchard, from Stanford, stretches during rookie football mini-camp at 49ers headquarters in Santa Clara, Calif., Friday, April 30, 2010. (AP Photo/Paul Sakuma)

San Francisco 49ers first-round draft pick Anthony Davis, a tackle from Rutgers, goes through drills during rookie football mini-camp at 49ers headquarters in Santa Clara, Calif., Friday, April 30, 2010. (AP Photo/Paul Sakuma)

San Francisco 49ers first-round draft pick Anthony Davis, a tackle from Rutgers, goes through drills during NFL football practice at 49ers headquarters in Santa Clara, Calif., Friday, April 30, 2010. (AP Photo/Paul Sakuma)

San Francisco 49ers players huddle during NFL football organized team activities at the 49ers training facility in Santa Clara, Calif., Monday, May 17, 2010. (AP Photo/Paul Sakuma)

San Francisco 49ers runningback Frank Gore (21) runs during NFL football organized team activities at the 49ers training facility in Santa Clara, Calif., Monday, May 17, 2010. (AP Photo/Paul Sakuma)

San Francisco 49ers tight end Vernon Davis (85) stretches during NFL football organized team activities at the 49ers training facility in Santa Clara, Calif., Monday, May 17, 2010. (AP Photo/Paul Sakuma)

San Francisco 49ers quarterback Alex Smith smiles during NFL football organized team activities at the 49ers training facility in Santa Clara, Calif., Monday, May 17, 2010. (AP Photo/Paul Sakuma)

From left to right, San Francisco 49ers quarterback David Carr (5), quarterback Alex Smith, quarterback Nate Davis and quarterback Jarrett Brown, passes during NFL football organized team activities at the 49ers training facility in Santa Clara, Calif., Monday, May 17, 2010. (AP Photo/Paul Sakuma)

San Francisco 49ers guard Mike Iupati (77) stretches during NFL football organized team activities at the 49ers training facility in Santa Clara, Calif., Monday, May 17, 2010. (AP Photo/Paul Sakuma)

San Francisco 49ers head coach Mike Singletary watches NFL football organized team activities at the 49ers training facility in Santa Clara, Calif., Monday, May 17, 2010. (AP Photo/Paul Sakuma)

San Francisco 49ers wide receiver Michael Crabtree (15) runs during NFL football organized team activities at the 49ers training facility in Santa Clara, Calif., Monday, May 17, 2010. (AP Photo/Paul Sakuma)

San Francisco 49ers tight end Vernon Davis (85) watches NFL football organized team activities at the 49ers training facility in Santa Clara, Calif., Monday, May 17, 2010. (AP Photo/Paul Sakuma)