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San Francisco 49ers head coach Jim Harbaugh, right, waves as he stands next to team owner Jed York, left, and Santa Clara Mayor Jamie Matthews at a groundbreaking ceremony at the construction site for the 49ers' new NFL football stadium in Santa Clara, Calif., Thursday, April 19, 2012. (AP Photo/Jeff Chiu)

Associated Press
San Francisco 49ers head coach Jim Harbaugh, right, waves as he stands next to team owner Jed York, left, and Santa Clara Mayor Jamie Matthews at a groundbreaking ceremony at the construction site for the 49ers' new NFL football stadium in Santa Clara, Calif., Thursday, April 19, 2012. (AP Photo/Jeff Chiu)
San Francisco 49ers head coach Jim Harbaugh, right, waves as he stands next to team owner Jed York, left, and Santa Clara Mayor Jamie Matthews at a groundbreaking ceremony at the construction site for the 49ers' new NFL football stadium in Santa Clara, Calif., Thursday, April 19, 2012. (AP Photo/Jeff Chiu)
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