Footwork of the goalkeeper.

  After Su Yun stamped the turf on the left side of the soccer ball, he began to slowly retreat towards the side and back of the soccer ball.

  While backing up, he watched Goitia's stance and where the wall of men was placed.

  He noticed through observation that Goitia's stance, rather than being the theoretically most logical stance, was slightly more inclined to defend the near corner.

  The wall of men was similarly placed, tending to block the far corners and leaving the near corners to Suyun.

  As a goalkeeper himself, Su Yun could understand Goitia's intention to give the far corner to the human wall to block. In this way, if the penalty kicker wants to kick the far corner, it will be very difficult, and he has to go over the wall. But if he kicked the near corner, he would have to pass the goalkeeper.