Candaleria v. State
In Candaleria v. State, 776 S.W.2d 741, 743-44 (Tex. App.--Corpus Christi 1989, pet. ref'd) the appellate court held that the victim's testimony was sufficient to establish that the appellant intentionally or knowingly caused the victim's bodily injury.
In that case, the victim testified that the appellant "used his forearm and upper shoulder to push me into the door." Id. at 743.
After being pushed, the victim hit the back of his head on the door causing tremendous pain. Id.