Following a high-stakes run at the US Open, professional tennis player Alexander Zverev has faced mounting scrutiny from opponents and analysts over a meticulous pre-serve routine that involves bouncing the ball extensively before every delivery. The habit, which reached a documented tally of thousands of bounces during the tournament in New York, has drawn sharp complaints from competitors regarding pace of play and calls for a stricter regulatory approach from tennis governing bodies.
Karen Khachanov and Competitors Call Out the Delay
During the tournament at Flushing Meadows, opponents highlighted the disruption caused by the extended pauses between points. Following a hard-fought match against Zverev, Russian competitor Karen Khachanov voiced frustration over the routine, pointing out the practical difficulties it creates for players waiting to return the ball.
“Das nervt nicht nur mich, sondern natürlich viele Spieler, weil es so viel Zeit kostet,” Khachanov said in comments following the match, noting that the prolonged sequence leaves players uncertain of when the service motion will actually begin. While acknowledging that the actions technically operate within the confines of current officiating guidelines, Khachanov argued that match officials carry the responsibility to monitor and manage elapsed time more closely.
Zverev Responds to Viral Statistics and Tournament Data
The time-intensive service routine did not go unnoticed by spectators or digital analysts tracking the tournament. Addressing the commentary himself, Zverev referenced an internal tournament metric circulating behind the scenes.
According to Zverev, he reviewed a statistical breakdown prior to taking the court which indicated that his cumulative ball bounces across the tournament had approached 12,000. Characterizing the figure as unexpected, the German player remarked that the count was “ziemlich lustig” (quite funny) and clarified that the habit lacks deliberate intent. He noted that he does not consciously count repetitions in his head, though the data prompted him to make a conscious effort to trim the frequency during subsequent rounds.
Regulatory Framework and Boris Becker’s Critique
Current tennis regulations stipulate that a server must initiate the motion within 25 seconds of the chair umpire announcing the score before the first serve. However, the rulebook leaves a distinct gap regarding the sequence leading into a second serve, a loophole highlighted by prominent analysts and former professionals.

Analyzing the situation as a television expert, former world number one Boris Becker criticized the lack of strict limitations surrounding second-serve preparations. Becker noted that the extent of Zverev’s repetitive bouncing had increased visibly compared to previous seasons, occasionally testing the patience of official timekeepers. During his semifinal appearance, Zverev routinely bounced the ball up to 20 times before a single delivery, resulting in at least one official time-violation warning from the chair umpire.