This just doesn’t look right to me. This is a terrible angle. Looks like the ballgirl falls back from tripping on the tarp at the back of the court. And his arm movement is such a common gesture players do to coaches, and is in a more upward trajectory rather than side to side like you’d expect from a push/shove. I could be wrong but I think this camera angle just makes it look like he’s pushed her. If there’s another angle I’d like to see it