I grew up in a fairly diverse area. I played soccer all while growing up and was relatively good.
My opponents were usually White with some mexicants and niggers sprinkled in.
All through my years I only got injured seriously once. It was from a nigger. He literally got pissed I was faster than him and one time he just pushed me over in the back - causing a tendon to snap in my ankle. Put me out for 3 months.
TL;DR: Played against 100s of Whites. 10s of Mexicants, and less than 10 niggers. Only got injured from a nigger.