Serena once again dominated Maria, after a slow start, for the fifteenth win in a row against her arch rival. Bill Tilden once said, "I never lose to someone I hate." It seems Serena has a bit of that mentality when she plays Maria. There is the sense while watching her focus and quiet intensity that Serena will just never allow herself to lose to Maria. She even scales back her grunting and roaring, as if to tell Maria and the audience that Maria is not even worthy of evoking her A level, even her B game is enough to get the job done.