Asal legally takes space on his shot, coupled with an unnecessary extending arm ‘assisting’ Elias. This makes Elias move much wider than is necessary and puts him off balance. Asal then steps up after his shot and unnecessarily extends and holds his follow-through at face height, making Elias change directions and duck to avoid being tripped and hit. The use of the left arm and the step up/followthrough combo create significant interference which he makes no attempt to avoid creating, and therefore a stroke is appropriate.

Conduct stroke. You can't move your foot to trip the other player.