LONDON — After pulling off one of the biggest wins of his career, Alexander Zverev was left apologizing for an unforced error he didn’t make.
Zverev denied Roger Federer a shot at a 100th career title by beating the Swiss great 7-5, 7-6 (5) on Saturday to advance to the championship match at the ATP Finals.
Federer was leading the second-set tiebreaker 4-3 and in the ascendancy of a rally on a Zverev service point when a ball boy at the back of the court dropped a ball. Zverev immediately signaled for the point to be stopped and the umpire ordered the point to be replayed.
Zverev served an ace before going on to close out the match moments later.
“I want to apologize for the situation in the tiebreak,” said Zverev, who was booed by some members of the crowd during his on-court interview. “The ball boy dropped the ball so it’s in the rules that we have to replay the point.
“I’m a little bit upset about the whole situation because this is not how I wanted it to end.”
Zverev is the youngest player at 21 to reach the final since 2009 and the first from Germany since 1996. He will next face Novak Djokovic or Kevin Anderson, who are in the other semifinal later Saturday.
Federer, 37, was seeking a record-extending seventh title, but was unable to cope with the pressure created by Zverev’s power and precision at the O2 Arena.
“He (Zverev) apologized to me at the net,” Federer said. “I was like, `Buddy, shut up. You don’t need to apologize to me here. Congratulations on a great match and a great tournament so far. All the best for the finals.’ And you move on.”
An inspired series of shots earned Zverev the first break points of the match in the 12th game and Federer sent a forehand wide to fall behind.
Federer willed himself to a break for 2-1 in the second set, but Zverev quickly composed himself to hit straight back in the following game.
Zverev overcame the freak interruption to establish a 5-4 lead in the tiebreaker, and Federer netted the simplest of forehand volleys to bring up match point.
He saved the first, but Zverev confidently put away a backhand drive volley to set up a shot at the biggest title of his career and leave Federer waiting until next season for his 100th title.
“Overall, I’m happy how the season went,” said Federer, who picked up his 20th Grand Slam title at the Australian Open. “There’s many positives. So I’m excited for next season.”
Despite having reached only one Grand Slam quarterfinal, Zverev is the only active player outside the Big Four of Djokovic, Federer, Rafael Nadal and Andy Murray to have won three Masters titles. But victory at the tour’s flagship event would exceed those achievements.
“Novak right now is the best player in the world,” said Zverev, who lost to Djokovic in the round robin. “No matter who it’s going to be, I’ll be ready.”