Step-by-step explanation:
it's the Donte who is suffering, beacuse of  the  racism which is Alan as a example. when in the book Donte Says "I need a fencing teacher" 
as we know Donte he  isn't a athlete never was, but knowing this the writer uses This to show Donte determination to learn Fencing and win against  his rival (Alan).
hope it helped!
have a nice day ;)