49ers bench Blaine Gabbert, will start Colin Kaepernick at QB

— -- SANTA CLARA, Calif. -- After five weeks of watching quarterback Blaine Gabbert struggle, San Francisco 49ers coach Chip Kelly is making a change.

After weeks of speculation, Kelly named Colin Kaepernick his starting quarterback for Sunday's game against Buffalo on Tuesday.

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Sunday's game will mark Kaepernick's first start since Nov. 1 of last year, a 27-6 loss to the Rams. Kaepernick played briefly the following week before shutting it down for the season because of a shoulder injury.