Alexander Zverev has called the ATP 'a disgrace' and blamed them for this poor showing in the Madrid Masters final against Carlos Alcaraz.
Zverev was completely overpowered in just 62 minutes as Alcaraz won his second Masters, and fourth title, of the season.
The German was very upset with the scheduling of the tournament, though, with many of his matches starting late in the day.
Late finishes and later nights inevitably followed, and he believes that scheduling caught up with him and cost him - and the fans - against Alcaraz.
"[Carlos] is playing amazing, there's absolutely no doubt about it," Alexander Zverev said after the final on Sunday.
"But one thing I have to say is that the ATP's job was an absolute disgrace this week. Two days ago I went to bed at 4am, 4:30am. Yesterday I went to bed at 5:20am.
"You know, if any normal person goes to bed one night at 4am, the next night at 5am, it will be a tough time just to be awake for them.
"And for me to play a final against Carlos Alcaraz, who for me is the best player in the world right now, in a Masters 1000 event, the next day, it is difficult.
"Today on court, I'm a little but angry, I would say, because I had no coordination on my serve nor my groundstrokes.
"I missed two overheads that were super easy because I see the ball, and everything is moving in my eyes.
"I don't want to take anything away, and today obviously, even if I'm fresh, probably I would not beat Carlos, but definitely it would be a better match.
"At the end of the day, I think all of us have stayed up late, all of us maybe parties sometimes, but if you're staying up until 4am, the next day, you're dead.
"Carlos is a great player. He's the best in the world right now. But to be honest, I feel sad for the final that we played, because this could have been a very good match. This could have been a great match.
"But I had absolutely no chance today of being myself. I had absolutely no chance of playing my level. This is not the first time this is happening.
"In Acapulco I played until 5am, I was awake until 8:30am. This is happening on a weekly basis, and to be honest, I'm a little tired of it."
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