Don't worry guys, I think I've solved the puzzle. Only two of these women actually have a ball to play ball with and of those two, only the one on the far left has her shoes tied, so she's obviously the best candidate. A little concerned about the lack of uniforms, though...

Far right

Far left

Middle

Gotta be #7 for me. I can't pass up big tits and a bush. I love her thick thighs too.

1 and the 4

5 or 13 for me!