"An Empirical Analysis of Racial Differences in Police Use of Force". This study reveals how police in the USA are indiscriminate in their use of lethal force (Despite it showing a slight disparity making them more likely to use lethal force with white people, yet I believe that this also does not prove discrimination either way). 

I believe that it was very wrong of kaepernick to make black people feel victimized and ashamed of their country and its anthem when the statistics show that they live in the most tolerant and freest society ever to exist!
 

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Gender issues in sport
For a long time there has been stereotypes about women that they cannot compete in 'mens' sport. I believe that this has been a major factor in the lack of women that compete in major sports compared to men. This is because there are a lot of girls who will feel that their image will be damaged if they try and get into these sports which creates less female role models and this is also part of the problem of less girls having incentive to pursue these sports. These may include Football, rugby, boxing and golf.
In football specifically, women did play for a long time, especially during the first world war, at this time they would attract large crowds,one game saw over 50 000 at Goodison park. However three years after the war in 1921, a ban was put in place by the FA on women's competitive football. This ban lasted for 50 years and was a clear example of sexism as this is discriminating based on gender. I believe that this was a factor that had a big impact on the culture surrounding sports such as football because this didn't allow women's football the time to progress and become a cultural norm until the ban was lifted in 1971.

Because of these cultural norms and differences, there are still lower participation rates for women which has contributed towards there also being differences at the elite level as well. One of these is that the English national women's team cannot host their matches at the national stadium like men can. This is down to there being less need or demand for the stadium, however that the women's team should still be given the opportunity to represent their country at wembley.

Case study 
Sex testing is a process where the gender of an athlete is checked for a sporting event in order to prove that they are female when competing in a female field so they are not receiving any of the performance advantages that a biological male would have. This process has been called sexist by some because it is a practice only used on women and it may be degrading or hurt the athlete's feelings. One woman who received this testing was a Taiwanese athlete called Duntee Chand. They made her take a test because "her muscles were too pronounced and her stride was too impressive". This will be seen as sexist by some because they will aregue that these people are suggesting that women cannot be muscular or have an impressive stride length.