The drill you'll see here, explained by coach Jackie Richter of Lakeville North High School in Minnesota, helps players focus on what it takes to win strings of points in each rotation.

The score starts at 18-18. A team needs to win 2 down balls in a row to earn the serve. Points don't get scored until the team is at the service line, and then it's a race to 21.

As Jackie explains, one of the keys to success in this drill is for servers and their teammates to stay poised after working hard to win 2 down balls in a row. Fatigue can sometimes hinder a team's ability to play a strong service point, but grouping together multiple points of steady play during the ups and downs of a match is obviously a huge part of winning.