Hello everyone, today we share how to save a butterfly ball with an unstable trajectory, I hope you all enjoy it!
The unpredictable trajectory of the butterfly ball makes it almost impossible for the goalkeeper to save the shot, the butterfly ball can be the worst shot for the goalkeeper, next we understand how the butterfly ball works, and then let's learn the butterfly ball's save recommendations.
Figure 1 - Uncertain trajectory
Working principle:
First, we need to be able to understand how butterfly balls work, which are balls kicked out with very low rotations, so that the balls produce a zigzag trajectory as they fly.
Figure 2 - Principle of butterfly balls
This is due to the fact that the ball is round, and when we kick out a ball with almost no rotation, it is affected by aerodynamic lift as it flies through the air.
Figure 3 - Affected by airflow
Due to the change of air flow around the ball and the texture of the ball, the air flow of the ball changes from laminar to turbulent, so that the way the ball flies changes, and the smoother the ball, the more changes in movement are generated.
Figure 4 - Flight mode changes
This was demonstrated at the 2010 World Cup, when FIFA decided to use the ball that was terrifying for the goalkeeper.
Figure 5 - The trajectory of Putian Tongqing
Due to the smooth surface and strange texture of the Putian Tongqing Ball, the trajectory it produces is unusual, and it increases the probability of strange trajectories in the flight of the football. Worst of all, it qualifies as an official ball because it meets all the requirements.
Figure 6 - Strange trajectory
Firefighting Recommendations:
Now that we understand how a butterfly ball works, let's start trying to save it, and when the butterfly ball hits our goal, we have to read the movement of the ball and get ourselves into the falling area of the butterfly ball.
Figure 7 - Slide to the drop area
This means that we have to slip through to the position where the butterfly ball will eventually appear. If the butterfly ball is facing either side of the goal, we need to swoop down to save and put both hands behind the ball as much as possible.
Figure 8 - Put your hand behind the ball
When the ball comes in, it is very difficult to catch the ball due to its uncertain movement. So, when the ball rushes towards us, we have to put both hands behind the ball in order to give ourselves the best chance to save.
Figure 9 - Providing the best chance to save
Also make sure that our bodies and hands are behind the ball, as this will expand the area of the ball and in case our hands miss the ball, we have enough barriers to protect the goal.
For some butterfly balls, its unstable movement is wider, and whether or not to try to catch the ball depends on the movement of the ball.
Figure 10 - Depends on the situation of the ball
If the trajectory of the ball is relatively stable, then we are more likely to catch the ball, but if the ball is moving more chaotically, then don't think about catching the ball, we try to hit the ball out of the goal.
Figure 11 - Knock the ball out of the goal
It is also very important not to move too early when the ball comes over, as the ball may change direction at the last moment it reaches our hand.
Figure 12 - Do not move too early
Try to wait as many seconds as possible to make sure you have the best chance of saving the ball, and remember that when the ball comes in, our eyes must always be on the ball to prevent some erratic movement at the last minute.
Figure 13 - Eyes staring at the ball
Finally, thankfully, for the goalkeeper, the technology about the football itself has been advancing, as can be seen from the latest aerodynamic football, which makes the ball's flight trajectory more stable.
Figure 14 - Updated Technology
Today's content is here, more exciting football teaching, please continue to pay attention to the road of football!