Ask most junior players what they do with a short ball and they will tell you the right answer: move in and attack it. Watch them in a match and you will see something else. The ball lands near the service line, they freeze for a half-second, arrive late, and slap a defensive-looking shot from a great offensive position. The knowledge was there. The trained response was not.
I am Michael Boothman, and after thirty-plus years of coaching here in Sarasota, I have come to believe the short ball is the single most wasted opportunity in junior tennis. Not because kids do not know it is an opening, but because they have never practiced turning that opening into points under conditions that feel anything like a match. That is exactly what the Green-Light Drill is built to fix.
Why the short ball gets fumbled
A short ball forces three decisions in about a second: recognize that the ball is landing short, decide to move forward instead of holding the baseline, and commit to a target while the body is still moving in. Any one of those on its own is manageable. Stacked together, at speed, they overwhelm a player who has only ever hit forehands from a cone-fed basket where every ball arrives at the same depth.
This is the core idea behind the first of my Six Pillars, Accuracy Inside Representative Conditions. Placement is not built by grooving a stroke in a calm, predictable feed. It is built inside live, game-like conditions where the player has to read the incoming ball, adjust, and still hit the target. A junior who can put eight of ten forehands in a corner off a friendly feed has proven very little. The same eight of ten off a genuinely short, awkward ball while sprinting forward is a real skill. Motor-learning research on contextual interference has shown for decades that practice which forces players to read and adapt transfers to competition far better than blocked, repetitive reps. The short ball is a perfect place to apply that.
Setting up the Green-Light Drill
You need one coach or a steady hitting partner, a bucket of targets, and a player who is willing to be uncomfortable for fifteen minutes.
The feeder rallies live from the baseline. Not a fed basket, a real cross-court or down-the-middle rally. Somewhere in that rally, unpredictably, the feeder drops one short, landing it around the service line. That short ball is the green light. The player’s job is to recognize it, move forward, and hit an attacking shot to a pre-agreed target, then either recover or, better, close toward the net to finish the point live.
Three rules make it work:
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The short ball is unannounced. The player never knows which ball is the green light. That uncertainty is the whole point. Reading the depth in real time is the skill being trained, and a player cannot practice reading if they already know the answer.
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The target is specific and scored. Deep corner, open-court sideline, whatever you choose, but name it and count it. I use the 85/100 Rule here: over a session, we are chasing a genuinely high make-rate to a target under pressure, not a lucky handful. Numbers keep it honest.
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The point is played out. The attacking shot does not end the drill. The feeder plays the next ball back if they can reach it, so the junior learns to attack and finish, which is where most kids leak points.
What to watch for as a coach
The first thing that breaks down is footwork, not the swing. Under the pressure of a live short ball, juniors tend to run to the ball with big, sloppy steps and arrive with their weight going backward, which turns a putaway into a push. Watch their last two steps in. Small, adjusting steps that let them load and drive forward through contact are what separate an attack from a bail-out.
The second thing is target discipline. When a player gets tight, the target quietly drifts toward the middle of the court, the safest and least useful place to hit an attacking ball. If your make-rate is high but the points are not ending, the target has gotten soft. Tighten it.
I coach the contact, not the choreography here, which is the third of the Six Pillars, Technique Is Geometry. I am not micromanaging the backswing while a kid is sprinting forward. I am watching for center contact and a square racquet face at the strike. Get those two things right and the ball goes where it is aimed, whatever the swing looked like getting there.
Building it into a week
For a developing junior, two rounds of this drill twice a week is plenty. Ten to fifteen balls per round, score the targets, and let the numbers tell the story. A player who starts at four of ten clean attacks and climbs to eight of ten over a few weeks has built something real, and they will feel it in matches. That is the fourth pillar in action: Confidence Is Built, Not Given. The junior is not being told they are aggressive. They are watching the count go up and drawing their own conclusion.
If you are a parent reading this, you do not need to run the drill yourself. What you can do is resist the urge to praise the winner and instead ask, “How many did you put in the corner today?” The scoreboard your kid remembers should be the one that reflects the work, not the highlight.
The short ball will keep showing up in every match your junior plays. The only question is whether they have trained the response enough that it happens automatically. Fifteen honest minutes a couple of times a week is usually all it takes to turn a frozen half-second into an instinct.
If you want to see how this fits into the larger picture of how I develop players, take a look at our coaching approach. And if you want the research foundation behind training under game-like variability, the USTA player development resources are a solid place to start.
See you on the court.
Coach Michael