- The technology is so advanced now, there is absolutely no reason to keep line judges.

That is my opinion, says the 33-year-old who is looking for his 18th grand slam title in the ongoing French championships.

Djokovic, who in the fourth round will face the 15-seeded Russian Karen Chatjanov, develops his reasoning:

- I understand that technology is expensive, so it is obviously an economic issue.

But it feels like it's the direction we're all moving, so sooner or later we do not need line judges.