Bold or lucky?

"Zhang Guan served, but Haas didn't receive it. The ball landed on the sideline. Was it an ACE ball? Or an out-of-bounds ball. Out of bounds! The referee judged out of bounds! It is not clear from our perspective. Did the ball go out of bounds, but I think the line referee should see it clearly, which is a pity."

"Huh? Does Zhang Guan want to challenge Hawk-eye? Challenge the Hawk-eye on the first goal! I don't think it's necessary at all. After all, the game has just started, and this is just his first shot. Although he made a mistake, Zhang Guan didn't have to challenge. If he misses the ball, he can make a second serve. However, if he fails to challenge, he will waste a chance to challenge. Unless Zhang Guan is very sure that the goal of this ball is in the bound, but it was such a fastball, I think even Zhang Guan, the server, couldn't make a clear judgment!"

While the narrator was talking, the audience had already set their sights on the big screen at the scene, waiting for the Hawk-Eye system to display the 3D simulation picture on the big screen.

Haas looked at the big screen nervously, even if the line referee made a penalty out of bounds, but Haas knew that at the ball speed just now, even the line referee who had been staring at the sideline, there would have made an error in his judgment.

But Zhang Guan is quite confident. When the ball landed, Zhang Guan's newly purchased tennis eagle eye instant playback system already showed that the edge of the ball was just pressing the line.

In tennis, as long as the ball is pressed on the line, it is considered to be in the circle, even if only a part or even a small part of the ball is pressed, it will be considered in the circle.

A few seconds later, a 3D simulation of the ball appeared on the big screen of the stadium. In the picture, the tennis ball flew over the net and then landed. If viewed from a parallel perspective, the ball did indeed appear to be out of bounds.

"Does this have to be a foul ball?" Haas felt a little relieved, but at this time, the picture on the big screen turned, and the originally parallel angle of view changed to an upward angle of view. A black circle appeared in the center. Projection display of different points.

The next second, the lens is zoomed in and the circle is enlarged. At this time, you can see that part of the edge of the black circle is pressed on the line!

"In the ball! There is no out of bounds! Zhang Guan challenges success!" The commentator exclaimed, and at the same time, the audience also remembered the crowds of exclamation.

"Just pressed on the line, this ball is lucky."

"This is an in-bounds ball, thanks to Zhang Guan's challenge."

"Zhang Guan is bold enough to challenge this kind of ball."

The discussion on the spot was one after another, and Haas admired Zhang Guan.

"He is bold enough to dare to challenge the ball just now. At such a long distance and such a fastball speed, even the line referee did not see clearly. Zhang Guan's challenge seemed like a gambling act! If it was me, I wouldn't dare to challenge this kind of ball. If the challenge is successful, I'm lucky!"

Not far away, the line referee also shook his head helplessly. Although this was a misjudgment, this kind of ball that only pressed a little on the sideline, it is normal to make a misjudgment simply by naked eyes.

Zhang Guan looked as usual and did not show a surprised expression, this is a result he already knew.

Zhang Guan purchased this tennis eagle eye instant playback system in the system, and this hawk-eye is exactly equivalent to Zhang Guan's private eagle eye system. Of course, there is no limit to the number of challenges like the official game. Zhang Guan wants to use it whenever he can. It doesn't matter how many times you want to use it. With this system in place, Zhang Guan can be 100% sure whether the ball falls within the bounds. If the ball falls outside the bounds, Zhang Guan will certainly not waste a precious challenge opportunity. Therefore, it can be said that Zhang Guan can achieve a 100% chance of challenging Hawk Eye.

"15-0!" The head referee announced the score, but against both sides and the audience, there was no objection to the penalty.

In a tennis match, a successful challenge does not necessarily mean that you will be able to score, but you may be awarded a rematch, and whether you score or replay depends on the referee's penalty. Of course, the referee's punishment also has a certain basis, and the basis is whether the referee has interfered with the player's receiving the ball.

For example, for this ball, although the line judge pronounced "OUT", but Haas himself was not prepared to receive this ball, so the referee will decide that Zhang Guan had scored; if Harvey went to receive this ball, and it had been received, but after the referee shouted "OUT", if there was a clear closing motion, then this ball will be awarded a rematch.

The game continued and Zhang Guan started to serve the second ball.

"Shoot", the tennis ball has flown to the opposite side of the net. This is still a flat serve, and the landing point is still the same as before.

Haas did not hesitate this time, did not consider whether it was a foul ball, he decided to go to catch the ball first, but the choice of the ball's landing position is too extreme, Haas found that he was halfway through when he knew he couldn't catch the ball, so he slowed down and stopped.

"I felt the same as before, is it out of bounds? Or is it on the line again?" Haas still turned his attention to the line referee.

"OUT!" The line referee shouted firmly.

Immediately afterward, Zhang Guan said to the referee, "I want to challenge!"

"Woooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooow, once again all the audience were screaming in amazement."

Haas looked at Zhang Guan with surprise. He didn't understand why Zhang Guan would challenge it.

"If you challenge the first ball, I can understand that after all, a successful start to the challenge can motivate your morale, but it is not necessary to challenge the ball again! The referee judgment is so accurate, this is a waste of an opportunity to challenge! "

...

"Zhang Guan wants to challenge again. Both consecutive serve challenges. The challenge just now was successful. Zhang Guan's luck is very good. So can Zhang Guan still maintain his luck this time? The ball speed of this ball is still very fast, but I believe that with the experience of misjudgment just now, the line referee's attention will be more concentrated, he should not have misjudged again! Okay, the hawk-eye simulation screen has come out!"

The voice of the narrator has just dropped, and the parallel viewing angle on the large screen has been changed to a vertical viewing angle. You can see the edge of the black circle, which is pressed against the white border again.

"Oh, my God, the ball in the field! Zhang Guan's challenge was successful! Another success! It was just a timeline! It was so wonderful, so exciting, so thrilling!" The commentator was amazed.

In the audience, cheers and applause broke out this time. This continuous serve of ACE makes the game rhythm very fast. Of course, it is far less ornamental than the player's back and forth, but the process of the Hawk-Eye challenge is very exciting. For the audience, the Hawk-Eye challenge looks like the moment the sieving cup is opened after the betting is over, the tension is even stronger than enjoying the game. The success of these two consecutive extreme challenges is very satisfying to the audience's mentality of seeking tension and stimulation.

...

The cheers on the scene calm down the game slightly, and the referee did not urge Zhang Guan to continue to serve. The cheers of the audience will affect the player's judgment on the ball. Second, the referee also gives both players a buffer time to let them adjust their mentality.

"The challenge was successful again, and he scored again!" Haas looked very weird. He looked at the line referee involuntarily.

The line referee found Haas's gaze somewhat embarrassed. As a line referee, his main task is to determine whether the ball is out of bounds, but two consecutive misjudgments also made the line referee faceless.

"I have made two wrong judgments in a row. I have to be more cautious. If I misjudge the ball again, it is shameful!" Thinking of this, the line referee widened his eyes and stared straight at the sideline.

The voice in the auditorium gradually subsided, and Zhang Guan began to serve the third ball.