u/ReadPatient6347

I have an R6M2 and primarily shoot with a 70-200 2.8 lens. My son is the keeper on his U12 team and I'm looking for tips on focal length, angles, etc. I can do a good job getting player action but I have a really hard time getting quality pics of him because of the distance and angle. I'm not planning on blowing any of this up larger than an 8x10 and I'm afraid to crop but wonder how many megapixels I can whittle photos down to before they become unusable. I also have a 100-400 and I've tried shooting with that, but the photos just aren't crisp. I would appreciate any feedback and suggestions!