Alexander Zverev has been hitting the headlines for what he did in his match against Alejandro Davidovich Fokina at the Madrid Open.
Zverev fought back to beat Davidovich Fokina in three sets, but that was not the main talking point of the match.
That came in the latter stages of the second set, where Zverev took a picture of a ball mark that he disagreed with the electronic line calls verdict on.
This has led to Zverev calling for a rule change, as he looks to continue his winning streak on clay.

Jack Sock gives his opinion on Alexander Zverev posting a picture of incorrect line call
After his victory over Davidovich Fokina, Zverev posted the picture of the ball mark onto social media.
This picture appeared to show the ball mark being out, supporting Zverev’s claim that he should have been awarded the point.
There was a big reaction to this Instagram story, with even Boris Becker defending Zverev for his actions.
Not everyone has the same view as Becker, but former top 10 player Jack Sock has revealed that he also supports Zverev’s actions of taking things into his own hands.
“I am a fan of it to be honest,” Sock said on the Nothing Major Podcast. “That ball was – we are not talking an inch we are talking more than that [out].
“So if I am a player I am taking a picture of it as well. I am probably going to put it on social media and talk about it. That would upset me as well. I am a fan of what Zverev did. Maybe it’s not the popular opinion but I think that would frustrate me as well.”
Jack Sock says if he thinks Alexander Zverev should be fined
This is not the first time that an incident of this nature has occurred, with Ukrainian player Sergiy Stakhovsky taking a picture of a ball mark at Roland Garros in 2013.
Stakhovsky was fined $2,000 for taking his phone out during the match, and now Sock is expecting Zverev to receive a similar punishment.

Despite expecting Zverev to be punished, Sock does not think that is the right decision to be made.
“I presume they are going to get fined but I think that’s ridiculous. It’s insane,” added Sock. “But the best part about watching the whole video is that Sascha stayed pretty calm and I love that Mohamed [Lahyani] is in the chair and is like I can’t get out, there is no way I can get out to check that mark.
“Sascha was basically saying that I am not asking you to overrule the point but take a look at the mark and tell me that the machine is wrong. Because that is where we lose confidence, if we can clearly see things and the mark says something different, especially on clay.”
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