VIDEO: Watch, Arsenal Forward Joel Campbell and his Suarez-Busquets trick against USA...so bad of him

Arsenal Forward, Joel Campbell played some dirty tricks by falling on the ground while walking past USA international Matt Besler, in which Belser received a yellow card and is ineligible for USA game against Mexico in the World Cup Qualifiers. From the Video i'm not sure if Belser actually stepped on Campbell with his cleats. What are your opinions?