Ok...new to this...never ever posted before....

I really like the first shot.  I would suggest that the horizon (or more accurately in this case, the ground) be made level.  I would also crop the top of the photo at just above the Raiders helmet, and on the bottom just below ground level.  That would focus attention more on the players.

Hey how do I post more?  I keep getting a duplicate message saying I can't

Not a bad capture but it looks like your focus is on the bleachers in the background.  I took a look at your picture and see that you shot this at f/10 with an ISO of 800.  By shooting at such a high aperture you give yourself a greater dof (depth of field), which will give you a more focused background.  When shooting action you want to isolate your subject from the background so the focus is on the player / action and not the background.  Also by using such a wide aperture you have to use a higher ISO to keep the speed up.  Try shooting at your lene's widest aperture.

I like the look of your second shot with the little guys running towards you.  If your interested I have put together some tips on shooting football action.  You can go to my blog and view the event titled "Photographing Football".

Thanks...for the info...great tip