I work with many people of different origins, I don't go "hey n****r pass me those spreadsheets" or I don't go "hey p**i can you confirm that you agree with my calculations"
I also have 2/3rds of my family who are from west indian origin. I don't say to my cousin "Hey n****r pass me the rum and let's have a few shots" or I don't say tomy aunt "Hey auntie did you fuck that n****r uncle of mine again"?
You see people don't say those words to their work colleagues or to friends or family, even in jest you just do not do it.
I highly doubt Evra's teammates call him the n word or anything racist towards him even in jest. What they may say in banter towards him is anything but racial. What I say to my colleagues in banter and jest is anything but racial, what I say to friends and family is anything but racial.
So Suarez said something to him in spanish, that his teammates say to him in english. I highly doubt then it is anything racial.
Added to that Evra's claim this word was said 10 times, there is no video proof of this and none of his team mates have corroborate anything Evra has said.