I like how low stats offer bonuses to other stats. That said, I expect that tracking the derived stats is liable to be annoying, and some form of reference to the formulas on the player cards would have been helpful. Agility tests and tests in general seem to first come up in the passing section. I presume you're meant to roll dice equal to your agility stat, trying for a 3 or higher? The injury system is interesting, and is meant to compound with the low stat bonuses I expect, to fit the redefining failure theme. Not sure it makes it however, since it's really more of a negative feedback loop, rather than a redefinition of failure, somewhat like Random Dungeon(s). I also can't find what if any limits there are on units in the rules, beyond the team being 8. For example a team of 8 runners is likely to give anyone that's played bloodbowl wood elf or gutter runner flashbacks.

It's a simple version of 'fantasy' football which is interesting. Species modifiers are the obvious expansion point, and you probably can squeeze them onto the last page. It doesn't really do that much that's original, and the design seems to have a few gaps, such as the lack of a definition for 'tests'. The tie to the theme is also kinda weak. 7/10, too much water.

I was about to post this comment and noticed the moodboard has robots. Huh. The 'Classes' really had me thinking fantasy.

This is a great idea. Keep at it! A little more info on where the ball ends up after a tackle needs to be added, but it's coming along nicely.