San Francisco 49ers running back Frank Gore runs after a reception during NFL football training camp in Santa Clara, Calif., Monday, Aug. 9, 2010. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers tight end Vernon Davis trains during NFL football training camp in Santa Clara, Calif., Monday, Aug. 9, 2010. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers' quarterback Alex Smith throws during NFL football training camp in Santa Clara, Calif., Monday, Aug. 9, 2010. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers linebacker Patrick Willis, right, talks to teammate Takeo Spikes during NFL football training camp in Santa Clara, Calif., Monday, Aug. 9, 2010. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers tight end Vernon Davis smiles during NFL football training camp in Santa Clara, Calif., Monday, Aug. 9, 2010. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers head coach ad Mike Singletary addresses questions during NFL football training camp in Santa Clara, Calif., Monday, Aug. 9, 2010. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers' Alex Smith signs autographs during NFL Football training camp in Santa Clara, Calif., Monday, Aug. 9, 2010. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers head coach Mike Singletary talks to linebacker Navorro Bowman during NFL Football training camp in Santa Clara, Calif., Monday, Aug. 9, 2010. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers quarterback Alex Smith passes during NFL football training camp in Santa Clara, Calif., Tuesday, Aug. 3, 2010. (AP Photo/Jeff Chiu)

San Francisco 49ers tight end Vernon Davis smiles during NFL football training camp in Santa Clara, Calif., Tuesday, Aug. 3, 2010. (AP Photo/Jeff Chiu)

San Francisco 49ers tight end Vernon Davis, left, practices with linebacker Ahmad Brooks during NFL football training camp in Santa Clara, Calif., Tuesday, Aug. 3, 2010. (AP Photo/Jeff Chiu)

San Francisco 49ers offensive lineman Chilo Rachal, bottom, practices during NFL football training camp in Santa Clara, Calif., Tuesday, Aug. 3, 2010. (AP Photo/Jeff Chiu)

San Francisco 49ers quarterbacks Alex Smith, right, and David Carr practice during NFL Football training camp in Santa Clara, Calif., Tuesday, Aug. 3, 2010. (AP Photo/Jeff Chiu)

San Francisco 49ers cornerback Phillip Adams, foreground, stretches during NFL football training camp in Santa Clara, Calif., Tuesday, Aug. 3, 2010. (AP Photo/Jeff Chiu)

San Francisco 49ers quarterback Alex Smith throws during NFL football training camp in Santa Clara, Calif., Monday, Aug. 2, 2010. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers quarterback Alex Smith, left, hands off to running back Frank Gore during NFL football training camp in Santa Clara, Calif., Sunday, Aug. 1, 2010. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers offensive lineman Anthony Davis (76) blocks teammate Vernon Davis (85) during NFL football training camp in Santa Clara, Calif., Sunday, Aug. 1, 2010. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers wide receiver Ted Ginn makes a catch during NFL football training camp in Santa Clara, Calif., Sunday, Aug. 1, 2010. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers wide receiver Michael Crabtree runs after a catch during NFL football training camp in Santa Clara, Calif., Sunday, Aug. 1, 2010. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers quarterback Alex Smith throws during NFL football training camp in Santa Clara, Calif., Sunday, Aug. 1, 2010. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers coach Mike Singletary directs his team during NFL football training camp in Santa Clara, Calif., Sunday, Aug. 1, 2010. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers quarterback Alex Smith throws during NFL football training camp in Santa Clara, Calif., Sunday, Aug. 1, 2010. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers coach Mike Singletary, right, talks to linebacker Patrick Willis during NFL football training camp in Santa Clara, Calif., Sunday, Aug. 1, 2010. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers wide receiver Michael Crabtree makes a reception during NFL football training camp in Santa Clara, Calif., Monday, Aug. 2, 2010. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers quarterback Alex Smith runs during NFL football training camp in Santa Clara, Calif., Monday, Aug. 2, 2010. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers running back Frank Gore runs during NFL football training camp in Santa Clara, Calif., Monday, Aug. 2, 2010. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers running back Frank Gore makes a reception during NFL football training camp in Santa Clara, Calif., Monday, Aug. 2, 2010. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers linebacker Patrick Willis, left, collides with guard Chilo Rachal during NFL football training camp in Santa Clara, Calif., Monday, Aug. 2, 2010. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers head coach Mike Singletary instructs his team during NFL football training camp in Santa Clara, Calif., Monday, Aug. 2, 2010. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers linebacker Patrick Willis chases a teammate during NFL football training camp in Santa Clara, Calif., Monday, Aug. 2, 2010. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers head coach Mike Singletary instructs his team during NFL football training camp in Santa Clara, Calif., Monday, Aug. 2, 2010. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers head coach Mike Singletary instructs his team during NFL football training camp in Santa Clara, Calif., Monday, Aug. 2, 2010. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers wide receiver Ted Ginn makes a catch during NFL Football training camp in Santa Clara, Calif., Monday, Aug. 2, 2010. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers first round pick guard Anthony Davis goes through drills during NFL Football training camp in Santa Clara, Calif., Monday, Aug. 2, 2010. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers first round pick guard Anthony Davis, center, smiles, during NFL Football training camp in Santa Clara, Calif., Monday, Aug. 2, 2010. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers quarterback David Carr throws during NFL Football training camp in Santa Clara, Calif., Monday, Aug. 2, 2010. (AP Photo/Marcio Jose Sanchez)

The San Francisco 49ers line up for a field goal drill during NFL football training camp in Santa Clara, Calif., Monday, Aug. 9, 2010. (AP Photo/Marcio Jose Sanchez)