Carlos Alcaraz's father angered many tennis fans for allegedly recording the training sessions of his son's potential opponents.

Now, Novak Djokovic, whom the young Alcaraz is expected to meet in the finals of the Men's Singles, is demanding the tournament to do more in assuring that players will have their privacy.

"That's the situation we are all in, the circumstances are such that we don't have privacy in training, although sometimes I would like to have more privacy," Djokovic told reporters ahead of his semis match with Jannik Sinner.

"Then it gives me more opportunities to try some things, to communicate more clearly with my team."

Serbian news station B92 first reported the spying allegations.

"Spaniard, world's number one, arrived with his team, and interestingly, his father closely followed the events at Novak's training, at one point recording everything that was happening," it wrote.

Jannik Sinner awaits Novak, and he's ready to stun

Djokovic will have to deal with Jannik Sinner first, though, before meeting Alcaraz.

Sinner and Alcaraz are two of the up-and-coming tennis stars right now, and they are both ready to carve their name. Coincidentally, the duo is at the center of another controversial Wimbledon poster that many believe did older tennis superstars dirty.

The 21-year-old Italian believes he has what it takes to beat the world's record holder for the Grand Slam title.

"For sure physically I have improved," Sinner told reporters. "I'm much stronger. I can stay on court for many hours without suffering."