Zverev says he is the only world No 1 who has to explain himself, then loses his first match at the top

Alexander Zverev says he is “annoyed” at having to justify his place at the top of the rankings. He then lost his first match as world No 1, and the argument he wanted to leave behind is now louder.

Zverev, 29, was handed the world No 1 trophy in Paris on Monday. On Wednesday he was beaten 7-6 (7-5) 6-2 by Lorenzo Musetti in his first match since reaching the top. He did not hide from the defeat. “To simplify it, he played really good and I played really bad,” he said, adding that it might be “one of the worst in the last couple of months”, as reported by BBC Sport.

“I deserve to be where I am”

The more interesting remark came when he was asked about the reaction to his new ranking. “I don’t think anybody had to explain themselves as much as I had to do in the last couple of days, which for me, is annoying, to be honest,” Zverev said.

He went further. “I was a bit annoyed, to be honest, because achieving the world number one status is something that every player dreams of,” he said. “But then I feel like I’m the only world number in tennis history that has to explain why it’s OK for me to be world number one, which I find quite difficult, because I think I deserve to be where I am, even though I lost today.”

Zverev did not say which comments he had in mind. The claim is easy to test, though, because the case for and against him rests on numbers.

The case for

He won the French Open and the US Open this year, his first two Grand Slam titles, and reached the Wimbledon final, where he lost to Jannik Sinner. Against opponents ranked 11th or lower he is 62-8 in 2026.

That argument has been made by others on this site. Juan Carlos Ferrero said the No 1 was “well-deserved” while admitting he and Zverev never shared an idea of professionalism, as we reported in our piece on Ferrero’s verdict.

The case against

The caveat is the one that follows him around. His success has come in a year when Carlos Alcaraz and Sinner have both had injury problems. Sinner has not played since Wimbledon after hurting his knee and has dropped to No 2, while Alcaraz missed large parts of the season with a wrist problem. Zverev has won only three of his 12 matches against top-10 opponents this year, has lost each of his last 10 meetings with Sinner and four of his last five against Alcaraz.

Zverev himself said last week that he would be “an idiot” to claim he had matched Sinner, while Patrick Mouratoglou said the No 1 ranking was still his, as we covered in our write-up of that exchange.

What the loss changes

A first-match exit does not undo a rise to No 1. The points are banked, and Zverev has already qualified for the ATP Finals in Turin. But it does hand his critics a clean line: the new world No 1 did not look like one on his first night. His own verdict, that it was one of his weakest matches in months, will not help.

Zverev has already spoken out this autumn about slow balls and courts, a debate we covered in our look at the Paris ball question. Now he is pushing back on how his ranking is perceived. The Turin draw will show whether the results can answer them instead.

For now the position is simple. Zverev says he deserves the ranking. The ranking says he earned it. Whether the sport agrees will be decided by how he plays against the players whose injuries have shaped his year, when they are healthy.