Zverev Loses First Match as World No. 1, Beaten by Musetti in Paris

Alexander Zverev lost his first match as world number one, going down 7-6 (7-5) 6-2 to Lorenzo Musetti at the Paris Masters. Zverev was the top seed, which means he was placed to avoid the strongest players until later in the draw, and he had a first-round bye, a free pass straight into the second round.

The first set went to a tiebreak, a short decider played when a set reaches 6-6. Musetti won it 7-5. He then took the second set 6-2, and Zverev's week in Paris ended in the second round.

The defeat came days after Zverev was handed his world number one trophy in Paris on 2 November. He became the 30th man to reach the top of the ATP rankings, the men's list that adds up points from tournament results over the past year. He is only the second German to get there, and he did it at 29. He passed Jannik Sinner by 100 points, 9,550 to 9,450. Sinner is now second, as he is out for the rest of the season with a knee injury.

Zverev was not happy with the reaction to his new position. "I was a bit annoyed, to be honest, because achieving the world number one status is something that every player dreams of," he said. He added: "I feel like I'm the only world number one in tennis history that has to explain why it's OK for me to be world number one."

He was also blunt about his performance against Musetti. "To simplify it, he played really good and I played really bad," Zverev said. He called it "one of the worst in the last couple of months." He still stood by his place at the top. "I think I deserve to be where I am, even though I lost today."

The rankings tell one story, but the head-to-head records tell another. Zverev has lost each of his last 10 meetings with Sinner. He has lost four of his last five matches against Carlos Alcaraz, who has missed large parts of 2026 with a wrist injury. In 2026 he has won only three of his 12 matches against players ranked in the top 10.

His big wins this year came at the majors, the four Grand Slam tournaments. He won the French Open and the US Open, and lost the Wimbledon final to Sinner. Before the French Open, Sinner and Alcaraz had shared the previous nine Grand Slam titles between them.

For Zverev, the next task is clear enough. The top of the rankings is his, but he has to show he can beat the players who have kept him out of the big matches. A ranking is a snapshot of points gathered over a year. Head-to-heads show how a player handles one opponent on one day, and right now those records are where his critics are looking.