Remember, this happened in real time. Not slow motion, not still pictures.
Tate's left hand is clearly between the ball and Jenning's chest. His right hand is on the top of the ball:
Tate's left hand is just under the ball (fingertips on the ball) in this picture, with his arm between Jenning's chest and the ball, before Jenning's left hand even touches the ball. The ball started to go through Jenning's hands, but Tate slowed it:
Tate's left hand is on the ball in this picture, with his arm between Jenning's chest and the ball: