The coach (F) is inside the ad service box, having a basket of balls to feed from; the player (A) is on the opposite side, deuce side baseline. Cones, as targets, are placed on the coach’s side, close to the baseline (see graphic below).
Drill:
The coach feeds a ball to the player. They rally the ball back and forth (coach volleys, player ground-strokes).
After player A hits two balls back to the coach, the third will be a put-away shot to the open court (cross-court) aiming deep toward the back-court targets.
Continue this drill for about 3 minutes then switch sides: coach inside the deuce side service box, player on the ad side baseline.
Notes:
Through this drill, the player practices controlled placement.

hit away 1