That's much better, that other player had to go! And yes, crop that tail end of a white SUV out of the picture, as well as that phantom gloved hand and leg.
The photos of him are nice, but the rest of the composition needs to be cleaner. If he plays in high school, go early and walk around, find good vantage points. See how the background is going to look before the players are on the field.
Usually in sports photographers are shooting at midrange to smaller apertures to get enough depth of field, but even if you're going for a close up and shooting at a larger aperture, that background is going to be there; you'll just get blobs of color instead of more defined shapes.
I've found there are often lines and posts and poles to contend with (incl. the ever popular trash cans) and you need to figure out where to stand to avoid those, or figure out how they can work in the composition. You can't go over there and move those white vehicles, but you can move your feet and get yourself someplace where something less noticeable will be in the background.
Practing your framing too. These are pretty good but you're shooting pretty loose. A lot of sports is the timing and anticipating what's next. I like to be set and ready and let the players come to me, into my viewfinder. Don't try to 'chase' them around; as the season goes on for home games once you've got the good vantage points figured out, anticipate the play. Usually doing hockey if I'm trying to get a certain player I notice line combinations and shift changes. If it's a right winger I get on the side of the ice where he/she will be in whatever direction the forwards will go.