He kicked it. I'm a Bulls fan so I must disclose that but even if I wasn't it seemed to be an obvious foul to me.
It really hammers home to anticipate the play not the foul saying.
Also, we must give credit when due for admitting his mistake to the media no less.
Finally- Salvatore seems to do a good job ( by NBA standards).
I really enjoy this clip.
YouTube - Allen Iverson & Larry Brown argue with the NBA referee