Sliding across with the ball
When the ball goes wide to one side of the other court, your pair moves across together towards it. The player on that side covers the line, and the partner moves in to cover the middle.
ステップ 1
The ball is in the middle of their court, so you stand evenly across your half.
ステップ 2
Their player is pulled wide to one side. You both slide that way: one covers the line, the other the middle.
ステップ 3
Their best options are now covered, so they have to try a harder angle or a lob.