Zhang Guan soon discovered that he did not have any outstanding talent in track and field, and he still did. () Thanks to the two skills of "body coordination" and "body flexibility", otherwise Zhang Guan's Xi would really be miserable.

Sharapova handed a towel to Zhang Guan and said, "My dear, with all due respect, it seems that you really don't have a talent for playing, or you should help me control the ball machine!"

"Controlling the ball machine?" Zhang Guan sighed helplessly, his current serve is indeed not as good as the ball machine.

"Martha, I'm just not serious! don't want to let me try to serve again?" Zhang Guan looked at Sharapova expectantly.

Sharapova sighed helplessly: "Okay, then let's try it with you again!"

Zhang Guan stood on the sideline again, picked up the racket, and prepared to serve.

"Anyway, you have to learn to serve! Otherwise, you will always be despised by Martha, and you won't even have the qualifications to practice with her in the future!" Zhang Guan thought of this and found the skills of Guan in the system.

There are many skills in Guan, and the skills related to the hand involve serving, receiving, topspin, downspin, high-pressure, volleying, etc., and the fast movement in all directions on the foot, and the control of broken steps are also related.

Zhang Guan still has a lot of skill points, last year he participated in the IAAF Golden League, Grand Prix, Super Grand Prix added up to more than a dozen, which earned more than 30 skill points, and three times to break the world record also has 12 skill points, in addition to the first half of the indoor competition in the reward although the attenuation, but plus two indoor 60-meter world records, there are more than a dozen skill points in the account. Therefore, at this time, Zhang Guan has accumulated skill points, and he can learn a lot of skills.

"Learn this ball to strengthen, to the master level is three skill points. Just laughed at the beauty. Thinking of this, Zhang Guan learned the skill of "ball strengthening" to the master level.

Then, Zhang Guan took a deep breath. After stabilizing his movements, he was about to reach the air.

What is the quality of the serve. Throwing the ball plays a very key role, the height of the ball should not be too high, nor too low, the position should be appropriate, and at the same time, the shot should be as smooth as possible when throwing the ball. The more crisp the ball throw, the better, such as hooking the fingers, throwing the wrist, etc. are redundant small actions for throwing the ball, which may affect the stability of the ball after throwing, and the less rotation the ball is controlled, the better. If it is a straight up and straight down ball that does not rotate at all, it is the best way to serve.

At the same time, the best time to throw the ball out of the hand also has requirements, the best point of the ball out of the hand is the highest point of the palm rise, if the ball is too early, it is easy to cause the ball to rotate or shake in the air, affecting the stability of the ball; if it is sold too late, the ball will move to the direction behind the player's head, and it is not easy to follow-up serve.

And the position of the ball also has an impact on the serve, generally if the position of the ball is forward, the force after the ball is served will be greater, and the speed will be faster, but the hitting point will also be forward, and it is not easy to grasp the landing point. It's easy to get out of bounds, so if you want to use a more aggressive serve, move forward with the toss.

Contrarily. If the toss position is lower, the success rate of the serve will be higher, and it is easier to control the rotation of the ball and control the landing point of the ball, and it is easier for the opponent to return the ball, so if you choose a more stable and conservative serving strategy, you can throw the ball further back.

For beginners, it is important to understand that "tossing" and "throwing" are two different concepts, and serving requires throwing the ball, not throwing the ball. Zhang Guan also practiced this many times before he slowly found his feeling.

Sharapova on the opposite side still maintained a charming smile. A sport that depends on talent, she has already confirmed that Zhang Guan has no talent in movement. So Quan Dang is playing games with Zhang Guan.

"It felt good to throw the ball this time, and the height was good. Much better than the previous times!" Sharapova commented silently in her heart.

Next, Zhang Guan began to swing the racket to hit the ball.

When the racket swings back to a certain angle, it will take the elbow as the axis, and the forearm, hand, and racket will hang down to the back, and at the same time, because the knee is bent at this time, the body looks like a "bow". There is no clear rule on the angle of this back swing, most of it varies from person to person, and height, hand length, grip habits, and so on have an impact.

The ball was thrown into the air, Zhang Guan's body also made a "bow" shape, and the next moment, he began to hit the ball.

Hitting the ball does not rely on the strength of the arm alone, but by the power of the whole body, driving the racket in the hand to swing to the point of impact, and the final power of the explosion point is just the moment of hitting. This is an overall action, if you take the right hand player as an example, the body is actually rotating horizontally and counterclockwise, while the upper arm is rotating upward, and a perfect combination of a series of forces such as kicking, heart, turning, and swinging can make a successful serve. In the process of serving, it is common to see the athlete's feet off the ground, which is not an active jump, but a passive departure of the feet from the ground caused by the force used in the serve.

There are many other techniques in the professional mobilization serve, such as the most commonly used counterspin serve by athletes, the more stable topspin serve, and the most difficult American spin serve. And the current Zhang Guan obviously doesn't know these techniques, the only thing he knows is the flat serve used by beginners.

Although the flat serve is known as a beginner serve, it is actually the fastest of all serves, this way of serving is fast, low rebound, powerful, for tall and powerful athletes, it can be regarded as a big killer, but unfortunately the hit rate is relatively low.

Many of the world's top players also like to use a flat serve on the first serve to fight for an ace or serve to score points, and only after the first serve fails will they choose to add spin to the second serve.

"This move looks good! The point of impact is relatively accurate, and the movement is very smooth!This serve is a good serve!" Sharapova continued to comment.

Then, Sharapova was ready to go and catch the ball.

"Whoosh!" a yellow light flew past Sharapova, who was just about to make a move, and the racket didn't even have time to be extended.

"Such a fast serve! the speed of the serve just now is definitely over 120 miles per hour!" Sharapova looked behind her in surprise, as the ball had just bounced off the wire of the fence and then fell and was rolling on the ground.

In the world-class men's professional mobilization, if you use a flat serve, the normal first serve speed is about 120 miles per hour, while athletes of the level of Federer and Nadal are the norm to exceed 125 miles per hour on one serve, and more than 10 miles slower than the first serve on the second serve. But Zhang Guan is only a beginner, and the speed of such a beginner is far from that of a female athlete, and Sharapova has never seen a beginner who can send a ball at 120 miles per hour.

As a female athlete, the normal speed of the first serve is about 105 miles per hour, and the second serve may even drop to about 90 miles per hour. Among the female athletes, such as Serena Williams, who served the most ferociously, the highest serving record was 125 miles per hour. So it's hard for a female athlete to catch a serve that goes over 120 miles per hour.

"It's a coincidence, it must be a coincidence! How can she send out such a fast ball at once, she was so bad at serving just now!" Sharapova is a Grand Slam player, she didn't catch a rookie's serve, she was a little annoyed and unconvinced, she shouted at Zhang Guan: "Come again!"

This time, Sharapova was not distracted from commenting on Zhang's serve, but focused on receiving.

Throwing the ball, bowing down, hitting the ball, Zhang Guan served again.

"Whoosh!" another yellow shadow flew in.

"It's coming! it's still so fast!" Sharapova was shocked, but this time she was much more focused, and Zhang Guan's serve was originally the easiest flat serve, so Sharapova still reacted, she moved her feet quickly, and then reluctantly made a return movement.

"It's over! This ball is so bad that it's either hit or it's going to be hit at a reverse angle!" Sharapova made a precise judgment the moment she returned the ball.

Then Zhang Guan ran over, returned the ball, and steadily pumped the ball on the ball

The return ball is not br / >

"Hahahaha......" Sharapova suddenly laughed happily, she remembered that Zhang Guan is a rookie at all, although these two serves are very good, but the return is still a rookie, Sharapova's bad serve just now can only be said to be barely in bounds, to angle no angle to speed no speed, even the lowest level of professional athletes, can easily complete the score, but Zhang Guan obviously can't do this.

Zhang Guan also felt very embarrassed, and he also knew that he missed a good opportunity with a scum-like return.

"What are you laughing at, if it's a match, it's just 15-15 now, and it's still my serve, so I'm going to get serious. Zhang Guan stood up and was ready to serve again.

"Master ball. At the same time, Zhang Guan spent three more skill points and learned a skill.

"Wait!" Sharapova abruptly stopped Zhang Guan, and then asked, "Your two serves are almost at the level of a professional male athlete." How the hell did you do that?"

"Talent!" Zhang Guan smiled very awesomely, and then said: "I'm a genius! Get ready, I want to serve!"

Zhang Guan's third serve, like the previous two times, still exceeded 120 miles per hour.

Sharapova reacted immediately, and this time her return was still a bit rushed, but both the angle and the landing point were much better than before.

However, Zhang's performance has also changed a lot better...... (To be continued.) )

ps:The second chapter is delivered.,Tomorrow the Spring Festival holiday is over.,I'm going to work.,The update time will be adjusted.,Change to one chapter in the morning and one in the afternoon.,The chapter in the morning will be as early as possible.。 Thank you for your support!