Ariza was mocking his Parkinson's disease, then kicked him in the chest. Who does that?? Roach said something like "get that fucking Mexican" regarding the fat ass Mexican that was acting like a thug. So no he wasn't racist.
Remember, Roach does not like the Garcia camp. It was Rios and Margarito who were making fun of Roach's disease before the Margarito fight so there is bad blood.
What happened was Rios' camp had the gym and media time from 9 to 11, at Which time it's team Pacquiao time. Roach goes to Garcia says he has to leave, Garcia says Rios still needs 30 minutes and they're not fucking leaving anywhere. Roach says leave you piece of shit, then Thats when Ariza and crew start going crazy.
Ironically Rios is going to end up with Parkinson's or major brain damage since he has no defense