I'm watching a football match, and a black goalkeeper is guarding one of the goals. This seems to be very rare by my observation.
For example, in the 100m dash, all the recent Olympic and World champions have had Afro-Caribbean ancestry.
Why are so few goalkeepers at high level football black? Is there reputable scientific evidence that indicates a physiological difference between the different races which impacts their goalkeeping ability, or is the difference down to cultural factors?