"I'm sure you'll pick it up quickly and will start winning in no time. I may have more experience, but you're a much better swimmer than I am."

He hands the make-shift ball to Kal.

"Probably the best way to start off is to trade off throwing and defending. I'll be in the defense position, so you try to make the goal and I'll try to stop you. Then after you do ten throws, we'll switch."