That's actually pretty nice of Yukari. The standard play for when the opponents ball is sitting in front of the wicket like this is to hit it for two free shots, the first of which you take by putting the balls together, putting a foot on your own to hold it down, and then hitting your own hard enough that it sends the opponents ball flying somewhere far away where it has no shot on that wicket anymore. Then you continue your turn through the wicket, gaining another free shot.