Isolate the third man combination and repeat it at volume. Players learn to set the ball short and then arrive to receive the longer pass across the shape, in every position of the rotation.
Set four mannequins in a diamond about thirteen metres across and put five players around it. The rhythm is fixed: a short set of three to five metres, then a ten metre pass across the diamond to a third player. That player sets short again, and so on. Nobody plays two long passes in a row. Two touch, one touch on the sets once it flows, and reverse the direction after a few minutes.
The third man combination is one of the most valuable ideas in football and one of the hardest to teach, because the player who benefits from it is not involved in either of the first two actions. He has to read an exchange between two other people and arrive at the right moment.
Stripping the finish out is what makes this version useful. There is no goal, no keeper and nothing to shoot at, so nobody is thinking about the end product and the whole exercise is the combination itself. Sixteen consecutive repetitions in a clip of under fifteen seconds is a rate of practice that no game-realistic drill can match, and that volume is exactly what a pattern like this needs before it can appear under pressure.
The fixed alternation is the discipline that carries it. Short, long, short, long, without exception. The moment a group plays two long passes in a row, the third man role has disappeared and it has become an ordinary passing square. Coaches usually have to police this for the first few minutes and then it holds by itself.
The mannequin diamond earns its place by shaping the long pass. Without it the ten metre ball can travel anywhere and body position hardly matters. With four obstacles in the middle, the pass has to go past something specific, and the receiver has to have opened up before it arrives or he cannot play the following set at all. That is the small technical habit the drill actually installs.
Save it to your private drills, then change the animation, adjust positions, swap equipment, or drop it into a session block. Or start from a blank pitch and build your own.