20160901 49ers vs. Chargers preseason game

49ers Chargers Football

San Francisco 49ers quarterback Colin Kaepernick, middle, kneels during the national anthem before the team's NFL preseason football game against the San Diego Chargers, Thursday, Sept. 1, 2016, in San Diego. (AP Photo/Chris Carlson)

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SAN DIEGO, CA - SEPTEMBER 01: Colin Kaepernick #7 of the San Francisco 49ers warms up before a preseason game against the San Diego Chargers at Qualcomm Stadium on September 1, 2016 in San Diego, California. (Photo by Harry How/Getty Images)

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San Francisco 49ers quarterback Colin Kaepernick (7) signs autographs before a preseason game against the San Diego Chargers at Qualcomm Stadium on September 1, 2016 in San Diego, Calif. (Harry How/Getty Images)

49ers Chargers Football

San Francisco 49ers quarterback Colin Kaepernick, left, talks with San Diego Chargers quarterback Philip Rivers during warm-ups for an NFL preseason football game Thursday, Sept. 1, 2016, in San Diego. (AP Photo/Denis Poroy)

49ers Chargers Football

San Francisco 49ers quarterback Colin Kaepernick warms up before the team's NFL preseason football game against the San Diego Chargers, Thursday, Sept. 1, 2016, in San Diego. (AP Photo/Lenny Ignelzi)

49ers Chargers Football

San Francisco 49ers quarterback Colin Kaepernick warms up for the team's NFL preseason football game against the San Diego Chargers, Thursday, Sept. 1, 2016, in San Diego. (AP Photo/Denis Poroy)

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San Francisco 49ers' Bradley Pinion (9), Colin Kaepernick (7) and Jeff Driskel (6) warm up before a preseason game against the San Diego Chargers at Qualcomm Stadium on September 1, 2016 in San Diego, California. (Harry How/Getty Images)

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San Francisco 49ers quarterback Colin Kaepernick (7) warms up before a preseason game against the San Diego Chargers at Qualcomm Stadium on September 1, 2016 in San Diego, California. (Harry How/Getty Images)

49ers Chargers Football

San Diego Chargers quarterback Philip Rivers warms up before an NFL preseason football game against the San Francisco 49ers, Thursday, Sept. 1, 2016, in San Diego. (AP Photo/Denis Poroy)

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San Francisco 49ers quarterback Colin Kaepernick (7) takes a knee on the sidelines as military personnel hold a flag during the singing of the National Anthem before a preseason game against the San Diego Chargers at Qualcomm Stadium on September 1, 2016 in San Diego, California. (Harry How/Getty Images)

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San Francisco 49ers quarterback Colin Kaepernick (7) stands on the sidelines as military personnel line up before the singing of the National Anthem before a preseason game against the San Diego Chargers at Qualcomm Stadium on September 1, 2016 in San Diego, California. (Harry How/Getty Images)

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San Francisco 49ers quarterback Colin Kaepernick (7) stands on the sidelines as military personnel line up before the singing of the National Anthem before a preseason game against the San Diego Chargers at Qualcomm Stadium on September 1, 2016 in San Diego, California. (Harry How/Getty Images)

49ers Chargers Football

San Francisco 49ers wide receiver Eric Rogers, left, pushes off San Diego Chargers cornerback Craig Mager during the first half of an NFL preseason football game Thursday, Sept. 1, 2016, in San Diego. (AP Photo/Denis Poroy)

49ers Chargers Football

San Francisco 49ers quarterback Colin Kaepernick passes against the San Diego Chargers during the first half of an NFL preseason football game, Thursday, Sept. 1, 2016, in San Diego. (AP Photo/Denis Poroy)

49ers Chargers Football

San Francisco 49ers quarterback Colin Kaepernick greets teammates after sitting during the national anthem before the team's NFL preseason football game against the San Diego Chargers, Thursday, Sept. 1, 2016, in San Diego. (AP Photo/Denis Poroy)

49ers Chargers Football

San Francisco 49ers quarterback Colin Kaepernick, middle, kneels during the national anthem before the team's NFL preseason football game against the San Diego Chargers, Thursday, Sept. 1, 2016, in San Diego. (AP Photo/Denis Poroy)

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San Diego Chargers' Asante Cleveland (45) makes a catch for a first down in front of San Francisco 49ers' Tank Carradine (95) during a preseason game at Qualcomm Stadium on September 1, 2016 in San Diego, California. (Harry How/Getty Images)

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San Francisco 49ers head coach Chip Kelly stands on the sidelines during a preseason game against the San Diego Chargers at Qualcomm Stadium on September 1, 2016 in San Diego, California. (Harry How/Getty Images)

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San Francisco 49ers' Ryan Whalen (81) takes a hit from San Diego Chargers' Craig Mager (29) and Jatavis Brown (57) during a preseason game at Qualcomm Stadium on September 1, 2016 in San Diego, California. (Harry How/Getty Images)