Zverev upset in Vienna semifinals ahead of taking No. 1 ranking

Alexander Zverev's ascent to the No. 1 ranking in tennis was cut short as he was defeated by Alex de Minaur in the semifinals of the Erste Bank Open in Vienna. Despite winning the initial three sets, Zverev struggled to maintain his momentum in the tiebreak, ultimately falling 6-4, 1-6, 7-6 (4) to the Australian. De Minaur's victory bolsters his prospects of securing a spot at the ATP Finals next month, while Zverev will assume the top spot on Monday, marking his 30th time leading the rankings and making him the oldest first-time No. 1 since 1974 at the age of 29.

De Minaur will face Carlos Alcaraz in the final on Sunday, after the Spaniard emerged victorious in his semifinal match against Daniil Medvedev, winning 6-4, 7-6 (2).

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