Nikon D300, Nikon 300mm f/2.8 lens, shutter speed 1/2000s, aperture f/2.8, ISO 720
If you have the proper gear, you can capture very dramatic sports images in the rain. You might get a little wet. But the sports photos are worth it, as you can tell from this soccer photo shot recently at a youth tournament in Louisville Kentucky.
I use the AquaTech lens and camera waterproof cover when I take photos like this in the rain. It's specifically designed to cover my Nikon 300mm f/2.8 lens attached to my Nikon D300 camera. While this camera / lens setup is attached to a monopod, I also hold a golf sized umbrella to stay as dry as possible. I sort of look like this when I shoot this way (that's not me in the photo by the way).