Chris, you are going to photograph sports under possibly the most difficult lighting conditions possible, so firstly I recommend you go in with low expectations.
If you have a lens that runs at F2.8 or lower then you should be OK if you ramp the ISO right up and shoot manual. Floodlights generally put out a pretty consistent light level so once you have worked out the correct exposure, you shouldn't need to change it. I guess there will be slight variations though.
Not sure what the sports shooters aim for, but I would say 1/500th is a minimum for shooting sports so do whatever is necessary to get into this zone. You can go lower than recommended, but expect the results to degrade.
Oh, and feel free to ignore the pedants who have seemingly no interest in helping you out.