Tennis men have unequal workload
It is wrong to condemn Novak Djokovic out of hand for saying that it is right that men should be paid more than women for taking part in tennis tournaments. By and large the male game is commercially more lucrative than the female game.
But what he apparently didn't mention is far more important. The supposed equality at tournaments like Wimbledon is a mirage.
As long as men have to play up to five sets instead of the three that is the maximum for women, then equal pay is matched by a very much unequal workload.