What setting should set my camera?

I have a Nikon D3000 and i'm going to take pictures at the football game, I'll be on the sideline. The game starts at 6:30pm and ends at 10pm (Houston Texas time). What setting should I set on my camera?

Manual setting

there's no right or wrong setting. It all depends on where you are, how much light you have, and what exactly you are trying to accomplish

for sports, you will want to use a fast shutter speed, at least 1/200th of a second, and even so, you will get blur, and then set the ISO and aperture accordingly

All of them.

You will have to be with your camera all the time.
According to theory you may have to keep the aperture full open with ISO ranging between 400 and above (even under fledge light).
You may be able to shoot at 1/60sec - 1/150sec speed (most of the time players will be blurred).