Rose rolled her eyes. Honestly, their mother was a muggle born, how could Hugo not know tennis? "First, tennis is not like Quidditch at all. Basically, tennis is a game where each player stands at one end of the court and you hit a small ball back and forth over a net. The object is to hit the ball passed your opponent after it bounces once on the court." While that wasn't the whole game, that was the bare minimum that she could explain without confusing them.
No, actually, he doesn't want to meet you. You all scare the living daylights out of him, she thought. "He'll be here by 7. That's what I told him. Dad, you may know his brother, Jasper Newton? He's a Hit Wizard."