I gotta disagree man. The forward view more clearly shows him hitting the hand (and, yes, a little bit of the ball too I'll admit). The behind the play view is where you clearly see Suggs' forearm hit Riley's forearm and it flings to the left.
Ive watched that slow motion video 3 times now and don’t see the forearm getting hit. Unless you lost a grand on that game, that’s being a bitch complaining about that.