Upload & Sell: Off
I feel your pain. What part of AZ you in? I'm in Central (actually walking distance from Phoenix College, which hosts a few hs teams).
I have had to shoot at high ISO before (51,200 ISO) for some of the high schools. In fact, I would suggest the same to you, especially if you were 1 stop underexposed. I say this because that means that you're pushing the files, which tends to look worse than going to the "H" ISO settings.
Also, and maybe this is a bit of a gamble, but maybe an 85 1.8 would help you with end zone plays? Having that extra stop or so would counteract the loss of light, and 85 is the right sweet spot to me where its probably not too wide, not too tight, a fast lens both focus and aperture wise, and yet somehow inexpensive relative to other options.
If you're ever in the central area, lemme know.