Thanks Sharon and BillM,
I was shooting horizontally most of the day, but I was trying to get a portrait shot of the QB throwing the ball, and they just handed it off instead, and I had no time to switch orientation. The play worked though, because they scored.
BillM, I was using a D7000 with the 70-300 f4.5-5.6 VRII. Shutter speed 1/1600, f5.6, ISO400, auto white balance.
Thanks Light Guru,
White balance was auto, the sun was setting and conditions were changing every few minutes. I wasnt in the stands; I was on the track about 12 feet from the sideline close to the15 yard line on a two foot step stool. The other photographer in shot there was another mom or dad with a camera on the sidelines. I normally dont shoot sports and showed up because my daughter wanted some shots of her cheerleading. After the game got going, all the parents had staked out their turf so I opted to go above them on the stool.