Welcome to the forum Diane.
Hmm. Spot metering might work; I prefer centre-weighted. I do a lot of indoor ballroom photography - essentially low light sports. You have it easy with soccer/football as it's well lit with floodlights. What you will need to do is put your camera in a continuous AF mode (the vast majority of your images on your website are out of focus), continuous firing, and in manual.
From my side it's just:
- use Aperture priority and set the aperture to f/2.8.
- crank up the ISO to 400, 800 or even 1600 if you feel comfortable with the amount of noise/grain that your camera produces at these settings
This will give you the shortest shutter speeds you can get and the highest chance to produce an image without motion blur of shake.
Use manual. I've given this advice a few times before on the forum. You're just going to be using the lens wide open - why leave the camera to control your shutter speed with a fixed aperture when you could be controlling the shutter to what you want it to be.
ISOs will inevitably need to be pushed a little. Depending on how your camera handles ISOs, that will dictate your settings. 800 is a good ballpark with the bright floodlights in soccer/football.
crank up the iso so you get a shutter of about 1/200 to freeze action
1/200 isn't enough in sports. 1.200-1/250 is what's often quoted to be the minimum speed to capture action. Faster moving sports will require faster speeds, and here I'd be thinking 1/640 and above for crisp action shots.