Colin Kaepernick's been busy getting ready for this, the first season-opening start of his 49ers career: 1:25 p.m, Green Bay Packers, Candlestick Park. "Yeah, football is why I'm here," Kaepernick said in an exclusive interview (full transcript below). "I'm not here to do commercials or anything like that, or photo shoots, interviews, all those things. [...]