It looks possible that he might have touched him near the upper arm. He certainly didn't hold him. He certainly didn't block him. Whatever interaction (if any) didn't affect the players movement in any way. You're brain is filling in something that isn't there. It's fine. I saw a guy take a horrible angle and make a flailing attempt at a tackle. If you see otherwise, then to my point...people can't really trust what they see in a replay in a LOT of cases. Artifacts of the camera, the lighting, the angles, the perspective...all distort reality to some degree.